diff --git a/aio.html b/aio.html
index 3ef8f7c..5c06106 100644
--- a/aio.html
+++ b/aio.html
@@ -639,7 +639,7 @@ <h4 class="accordion-header" id="headingSolution1">
   To be Findable
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The first step before reusing the data is to be able to find them.
 The metadata and data should be easy to find for <strong>both humans and
@@ -661,7 +661,7 @@ <h4 class="accordion-header" id="headingSolution2">
   To be Accessible
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Once the data can be found, the user needs to know how to access
 them. That could include authentification and authorisation. The
@@ -689,7 +689,7 @@ <h4 class="accordion-header" id="headingSolution3">
   To be Interoperable
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Those data can then be combined with different datasets, and
 interoperate with other applications or workflows for analysis, storage,
@@ -709,7 +709,7 @@ <h4 class="accordion-header" id="headingSolution4">
   To be Reusable
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The ultimate goal of FAIR is to optimise the reuse of data. To
 achieve this, metadata and data should be well-described, including a
@@ -927,7 +927,7 @@ <h4 class="accordion-header" id="headingHint1">
   Give me a hint
   </h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
 <div class="accordion-body">
 <p>Look for these objects in <a href="http://simbad.cds.unistra.fr/simbad/" class="external-link">Simbad</a>.</p>
 <p>Can you find them?</p>
@@ -942,7 +942,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Why is it improper?
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>I1) Insufficient precision in RA and DEC causes confusion. In this
 case, it could correspond to many objects and different surveys.</p>
@@ -971,7 +971,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Recommended usage
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>R1) LAMOST J221750.59+210437.1 and SDSS J221746.82+210424.1 are
 potential matches for this incomplete name</p>
@@ -1283,7 +1283,7 @@ <h4 class="accordion-header" id="headingHint2">
   Why is it improper?
   </h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
 <div class="accordion-body">
 <p>The quality of the measurement is indicated using a superscript.
 Providing this information using an extra column will make the table
@@ -1299,7 +1299,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Recommended usage
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <table class="table">
 <thead><tr class="header">
@@ -1517,7 +1517,7 @@ <h4 class="accordion-header" id="headingSolution8">
   List of solutions
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <table class="table">
 <colgroup>
@@ -2725,7 +2725,7 @@ <h4 class="accordion-header" id="headingSolution1">
   A. ‘Title of the paper’, ‘Authors’, ‘Reference’
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ul>
 <li>
@@ -2748,7 +2748,7 @@ <h4 class="accordion-header" id="headingSolution2">
   B. ‘Abstract’ and ‘Description’
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ul>
 <li>
@@ -2779,7 +2779,7 @@ <h4 class="accordion-header" id="headingSolution3">
   C. ‘Byte-by-byte Description of file’
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>This section describes the structure of each data files (files with
 the .dat extension). This description is made in a tabular form, each
diff --git a/index.html b/index.html
index 9ba3797..e6184a7 100644
--- a/index.html
+++ b/index.html
@@ -428,7 +428,7 @@ <h3 class="callout-title">Checklist<a class="anchor" aria-label="anchor" href="#
 Cloud) Future project, funded by the European Union Horizon Program call
 INFRAEOSC-03-2020 - grant Agreement Number 101017536.</p>
 <p float="left">
-<img src="https://raw.githubusercontent.com/cds-astro/a-FAIR-journey-for-astronomical-data/main/episodes/images/tmp_logos/eosc_future_logo.png" alt="Logo European Open Science Cloud Future- EOSC Future" width="250px" class="figure"><img src="https://raw.githubusercontent.com/cds-astro/a-FAIR-journey-for-astronomical-data/main/episodes/images/tmp_logos/cds-logo.png" alt="Logo Centre de Données astronomiques de Strasbourg - CDS" width="250px" class="figure"></p>
+<img src="https://raw.githubusercontent.com/cds-astro/a-FAIR-journey-for-astronomical-data/main/episodes/images/tmp_logos/cds-logo.png" alt="Logo Centre de Données astronomiques de Strasbourg - CDS" width="250px" class="figure"><img src="https://raw.githubusercontent.com/cds-astro/a-FAIR-journey-for-astronomical-data/main/episodes/images/tmp_logos/eosc_future_logo.png" alt="Logo European Open Science Cloud Future- EOSC Future" width="250px" class="figure"></p>
 <!--  ----------------------------------------- -->
 <!--            Link references  ==> links.md   -->
 <!--  ----------------------------------------- -->
diff --git a/instructor/aio.html b/instructor/aio.html
index 91b7869..a5c6a26 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -639,7 +639,7 @@ <h4 class="accordion-header" id="headingSolution1">
   To be Findable
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The first step before reusing the data is to be able to find them.
 The metadata and data should be easy to find for <strong>both humans and
@@ -661,7 +661,7 @@ <h4 class="accordion-header" id="headingSolution2">
   To be Accessible
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Once the data can be found, the user needs to know how to access
 them. That could include authentification and authorisation. The
@@ -689,7 +689,7 @@ <h4 class="accordion-header" id="headingSolution3">
   To be Interoperable
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Those data can then be combined with different datasets, and
 interoperate with other applications or workflows for analysis, storage,
@@ -709,7 +709,7 @@ <h4 class="accordion-header" id="headingSolution4">
   To be Reusable
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The ultimate goal of FAIR is to optimise the reuse of data. To
 achieve this, metadata and data should be well-described, including a
@@ -906,7 +906,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Modified version of Table 1 from Chen et al. 2022:</p>
 <p>Show some examples of improper astronomical designations in
@@ -943,7 +943,7 @@ <h4 class="accordion-header" id="headingHint1">
   Give me a hint
   </h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
 <div class="accordion-body">
 <p>Look for these objects in <a href="http://simbad.cds.unistra.fr/simbad/" class="external-link">Simbad</a>.</p>
 <p>Can you find them?</p>
@@ -958,7 +958,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Why is it improper?
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>I1) Insufficient precision in RA and DEC causes confusion. In this
 case, it could correspond to many objects and different surveys.</p>
@@ -987,7 +987,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Recommended usage
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>R1) LAMOST J221750.59+210437.1 and SDSS J221746.82+210424.1 are
 potential matches for this incomplete name</p>
@@ -1253,7 +1253,7 @@ <h3 class="accordion-header" id="headingInstructor2">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor2" class="accordion-collapse collapse" aria-labelledby="headingInstructor2" data-bs-parent="#accordionInstructor2">
+<div id="collapseInstructor2" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor2" aria-labelledby="headingInstructor2">
 <div class="accordion-body">
 <p>Modified version from Table 2 from Chen et al. 2022:</p>
 <p>Show that using LaTeX markups or footnotes in tables affect their
@@ -1315,7 +1315,7 @@ <h4 class="accordion-header" id="headingHint2">
   Why is it improper?
   </h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
 <div class="accordion-body">
 <p>The quality of the measurement is indicated using a superscript.
 Providing this information using an extra column will make the table
@@ -1331,7 +1331,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Recommended usage
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <table class="table">
 <thead><tr class="header">
@@ -1533,7 +1533,7 @@ <h3 class="accordion-header" id="headingInstructor3">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor3" class="accordion-collapse collapse" aria-labelledby="headingInstructor3" data-bs-parent="#accordionInstructor3">
+<div id="collapseInstructor3" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor3" aria-labelledby="headingInstructor3">
 <div class="accordion-body">
 <p>Table 3 from Chen et al. 2022:</p>
 <p>Give some examples of ambiguous facility/ telescope/instrument names
@@ -1565,7 +1565,7 @@ <h4 class="accordion-header" id="headingSolution8">
   List of solutions
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <table class="table">
 <colgroup>
@@ -2790,7 +2790,7 @@ <h4 class="accordion-header" id="headingSolution1">
   A. ‘Title of the paper’, ‘Authors’, ‘Reference’
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ul>
 <li>
@@ -2813,7 +2813,7 @@ <h4 class="accordion-header" id="headingSolution2">
   B. ‘Abstract’ and ‘Description’
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ul>
 <li>
@@ -2844,7 +2844,7 @@ <h4 class="accordion-header" id="headingSolution3">
   C. ‘Byte-by-byte Description of file’
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>This section describes the structure of each data files (files with
 the .dat extension). This description is made in a tabular form, each
diff --git a/instructor/index.html b/instructor/index.html
index 87d30e3..bda94bb 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -502,7 +502,7 @@ <h3 class="callout-title">Checklist<a class="anchor" aria-label="anchor" href="#
 Cloud) Future project, funded by the European Union Horizon Program call
 INFRAEOSC-03-2020 - grant Agreement Number 101017536.</p>
 <p float="left">
-<img src="https://raw.githubusercontent.com/cds-astro/a-FAIR-journey-for-astronomical-data/main/episodes/images/tmp_logos/eosc_future_logo.png" alt="Logo European Open Science Cloud Future- EOSC Future" width="250px" class="figure"><img src="https://raw.githubusercontent.com/cds-astro/a-FAIR-journey-for-astronomical-data/main/episodes/images/tmp_logos/cds-logo.png" alt="Logo Centre de Données astronomiques de Strasbourg - CDS" width="250px" class="figure"></p>
+<img src="https://raw.githubusercontent.com/cds-astro/a-FAIR-journey-for-astronomical-data/main/episodes/images/tmp_logos/cds-logo.png" alt="Logo Centre de Données astronomiques de Strasbourg - CDS" width="250px" class="figure"><img src="https://raw.githubusercontent.com/cds-astro/a-FAIR-journey-for-astronomical-data/main/episodes/images/tmp_logos/eosc_future_logo.png" alt="Logo European Open Science Cloud Future- EOSC Future" width="250px" class="figure"></p>
 <!--  ----------------------------------------- -->
 <!--            Link references  ==> links.md   -->
 <!--  ----------------------------------------- -->
diff --git a/instructor/section_fair_astro.html b/instructor/section_fair_astro.html
index ebdbad4..2cf2cec 100644
--- a/instructor/section_fair_astro.html
+++ b/instructor/section_fair_astro.html
@@ -380,7 +380,7 @@ <h4 class="accordion-header" id="headingSolution1">
   To be Findable
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The first step before reusing the data is to be able to find them.
 The metadata and data should be easy to find for <strong>both humans and
@@ -402,7 +402,7 @@ <h4 class="accordion-header" id="headingSolution2">
   To be Accessible
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Once the data can be found, the user needs to know how to access
 them. That could include authentification and authorisation. The
@@ -428,7 +428,7 @@ <h4 class="accordion-header" id="headingSolution3">
   To be Interoperable
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Those data can then be combined with different datasets, and
 interoperate with other applications or workflows for analysis, storage,
@@ -448,7 +448,7 @@ <h4 class="accordion-header" id="headingSolution4">
   To be Reusable
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The ultimate goal of FAIR is to optimise the reuse of data. To
 achieve this, metadata and data should be well-described, including a
@@ -628,7 +628,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Modified version of Table 1 from Chen et al. 2022:</p>
 <p>Show some examples of improper astronomical designations in
@@ -665,7 +665,7 @@ <h4 class="accordion-header" id="headingHint1">
   Give me a hint
   </h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
 <div class="accordion-body">
 <p>Look for these objects in <a href="http://simbad.cds.unistra.fr/simbad/" class="external-link">Simbad</a>.</p>
 <p>Can you find them?</p>
@@ -680,7 +680,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Why is it improper?
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>I1) Insufficient precision in RA and DEC causes confusion. In this
 case, it could correspond to many objects and different surveys.</p>
@@ -709,7 +709,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Recommended usage
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>R1) LAMOST J221750.59+210437.1 and SDSS J221746.82+210424.1 are
 potential matches for this incomplete name</p>
@@ -939,7 +939,7 @@ <h3 class="accordion-header" id="headingInstructor2">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor2" class="accordion-collapse collapse" aria-labelledby="headingInstructor2" data-bs-parent="#accordionInstructor2">
+<div id="collapseInstructor2" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor2" aria-labelledby="headingInstructor2">
 <div class="accordion-body">
 <p>Modified version from Table 2 from Chen et al. 2022:</p>
 <p>Show that using LaTeX markups or footnotes in tables affect their
@@ -980,7 +980,7 @@ <h4 class="accordion-header" id="headingHint2">
   Why is it improper?
   </h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
 <div class="accordion-body">
 <p>The quality of the measurement is indicated using a superscript.
 Providing this information using an extra column will make the table
@@ -996,7 +996,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Recommended usage
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <table class="table"><thead><tr class="header"><th>Object</th>
 <th align="center">Redshift</th>
@@ -1161,7 +1161,7 @@ <h3 class="accordion-header" id="headingInstructor3">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor3" class="accordion-collapse collapse" aria-labelledby="headingInstructor3" data-bs-parent="#accordionInstructor3">
+<div id="collapseInstructor3" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor3" aria-labelledby="headingInstructor3">
 <div class="accordion-body">
 <p>Table 3 from Chen et al. 2022:</p>
 <p>Give some examples of ambiguous facility/ telescope/instrument names
@@ -1193,7 +1193,7 @@ <h4 class="accordion-header" id="headingSolution8">
   List of solutions
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <table class="table"><colgroup><col width="39%"><col width="60%"></colgroup><thead><tr class="header"><th>Names as published</th>
 <th>Possible interpretation</th>
diff --git a/instructor/section_submit_data.html b/instructor/section_submit_data.html
index 25dc3a0..7a5966f 100644
--- a/instructor/section_submit_data.html
+++ b/instructor/section_submit_data.html
@@ -509,7 +509,7 @@ <h4 class="accordion-header" id="headingSolution1">
   A. ‘Title of the paper’, ‘Authors’, ‘Reference’
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ul><li>
 <strong>Title of the paper</strong>: Title as written in paper</li>
@@ -530,7 +530,7 @@ <h4 class="accordion-header" id="headingSolution2">
   B. ‘Abstract’ and ‘Description’
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ul><li>
 <strong>Abstract</strong>: Describes the <em>scientific results</em>
@@ -555,7 +555,7 @@ <h4 class="accordion-header" id="headingSolution3">
   C. ‘Byte-by-byte Description of file’
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>This section describes the structure of each data files (files with
 the .dat extension). This description is made in a tabular form, each
diff --git a/md5sum.txt b/md5sum.txt
index 16b9c81..9440aee 100644
--- a/md5sum.txt
+++ b/md5sum.txt
@@ -12,6 +12,6 @@
 "episodes/section_data_curation.md" "7762c4a4bfadb80226d6d18f283c0804" "site/built/section_data_curation.md" "2023-09-11"
 "episodes/section_eosc.md" "602f27426f3498b4beeb9b8b0ee4a4b1" "site/built/section_eosc.md" "2023-09-07"
 "instructors/instructor-notes.md" "60b93493cf1da06dfd63255d73854461" "site/built/instructor-notes.md" "2022-04-22"
-"learners/setup.md" "b15617b6c6ce0a7c960e2b10f2505477" "site/built/setup.md" "2023-10-31"
+"learners/setup.md" "6ad9b95c6a9f24b8e4f51c577901afe5" "site/built/setup.md" "2023-10-31"
 "learners/reference.md" "bfa491f8cf0002c2efaeb527354f5b14" "site/built/reference.md" "2023-08-30"
 "profiles/learner-profiles.md" "60b93493cf1da06dfd63255d73854461" "site/built/learner-profiles.md" "2022-04-22"
diff --git a/pkgdown.yml b/pkgdown.yml
index 427ba01..bd7b5f8 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 2.19.2
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
-last_built: 2023-10-31T11:57Z
+last_built: 2023-10-31T12:02Z
 
diff --git a/section_fair_astro.html b/section_fair_astro.html
index 28c6c8d..5e33f9e 100644
--- a/section_fair_astro.html
+++ b/section_fair_astro.html
@@ -379,7 +379,7 @@ <h4 class="accordion-header" id="headingSolution1">
   To be Findable
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The first step before reusing the data is to be able to find them.
 The metadata and data should be easy to find for <strong>both humans and
@@ -401,7 +401,7 @@ <h4 class="accordion-header" id="headingSolution2">
   To be Accessible
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Once the data can be found, the user needs to know how to access
 them. That could include authentification and authorisation. The
@@ -427,7 +427,7 @@ <h4 class="accordion-header" id="headingSolution3">
   To be Interoperable
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Those data can then be combined with different datasets, and
 interoperate with other applications or workflows for analysis, storage,
@@ -447,7 +447,7 @@ <h4 class="accordion-header" id="headingSolution4">
   To be Reusable
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The ultimate goal of FAIR is to optimise the reuse of data. To
 achieve this, metadata and data should be well-described, including a
@@ -648,7 +648,7 @@ <h4 class="accordion-header" id="headingHint1">
   Give me a hint
   </h4>
 </button>
-<div id="collapseHint1" class="accordion-collapse collapse" aria-labelledby="headingHint1" data-bs-parent="#accordionHint1">
+<div id="collapseHint1" class="accordion-collapse collapse" data-bs-parent="#accordionHint1" aria-labelledby="headingHint1">
 <div class="accordion-body">
 <p>Look for these objects in <a href="http://simbad.cds.unistra.fr/simbad/" class="external-link">Simbad</a>.</p>
 <p>Can you find them?</p>
@@ -663,7 +663,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Why is it improper?
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>I1) Insufficient precision in RA and DEC causes confusion. In this
 case, it could correspond to many objects and different surveys.</p>
@@ -692,7 +692,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Recommended usage
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>R1) LAMOST J221750.59+210437.1 and SDSS J221746.82+210424.1 are
 potential matches for this incomplete name</p>
@@ -947,7 +947,7 @@ <h4 class="accordion-header" id="headingHint2">
   Why is it improper?
   </h4>
 </button>
-<div id="collapseHint2" class="accordion-collapse collapse" aria-labelledby="headingHint2" data-bs-parent="#accordionHint2">
+<div id="collapseHint2" class="accordion-collapse collapse" data-bs-parent="#accordionHint2" aria-labelledby="headingHint2">
 <div class="accordion-body">
 <p>The quality of the measurement is indicated using a superscript.
 Providing this information using an extra column will make the table
@@ -963,7 +963,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Recommended usage
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <table class="table"><thead><tr class="header"><th>Object</th>
 <th align="center">Redshift</th>
@@ -1144,7 +1144,7 @@ <h4 class="accordion-header" id="headingSolution8">
   List of solutions
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
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 <div class="accordion-body">
 <table class="table"><colgroup><col width="39%"><col width="60%"></colgroup><thead><tr class="header"><th>Names as published</th>
 <th>Possible interpretation</th>
diff --git a/section_submit_data.html b/section_submit_data.html
index 0ffc3b7..29d8099 100644
--- a/section_submit_data.html
+++ b/section_submit_data.html
@@ -508,7 +508,7 @@ <h4 class="accordion-header" id="headingSolution1">
   A. ‘Title of the paper’, ‘Authors’, ‘Reference’
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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 <div class="accordion-body">
 <ul><li>
 <strong>Title of the paper</strong>: Title as written in paper</li>
@@ -529,7 +529,7 @@ <h4 class="accordion-header" id="headingSolution2">
   B. ‘Abstract’ and ‘Description’
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
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 <div class="accordion-body">
 <ul><li>
 <strong>Abstract</strong>: Describes the <em>scientific results</em>
@@ -554,7 +554,7 @@ <h4 class="accordion-header" id="headingSolution3">
   C. ‘Byte-by-byte Description of file’
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>This section describes the structure of each data files (files with
 the .dat extension). This description is made in a tabular form, each