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diff --git a/index.html b/index.html
index 737c762..85e78ba 100644
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       <a href="./">Biological and Biomedical Data Science (</a><a href="https://gu-dsan.github.io/6150-fall-2024/" target="_blank">DSAN 6150</a>) 
+        <div class="sidebar-tools-main">
+    <a href="https://github.com/araastat/6150-notes/" title="Source Code" class="quarto-navigation-tool px-1" aria-label="Source Code"><i class="bi bi-github"></i></a>
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-</nav>
+<div class="toc-actions"><ul><li><a href="https://github.com/araastat/6150-notes/edit/main/index.qmd" class="toc-action"><i class="bi bi-github"></i>Edit this page</a></li><li><a href="https://github.com/araastat/6150-notes/issues/new" class="toc-action"><i class="bi empty"></i>Report an issue</a></li></ul></div></nav>
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@@ -652,7 +655,7 @@ <h1 class="unnumbered">Introduction</h1>
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+    <div class="toc-actions d-sm-block d-md-none"><ul><li><a href="https://github.com/araastat/6150-notes/edit/main/index.qmd" class="toc-action"><i class="bi bi-github"></i>Edit this page</a></li><li><a href="https://github.com/araastat/6150-notes/issues/new" class="toc-action"><i class="bi empty"></i>Report an issue</a></li></ul></div></div>
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index f648462..ea0f7ae 100644
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@@ -637,7 +640,7 @@ <h1 class="title">References</h1>
 </div>   
     <div class="nav-footer-center">
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diff --git a/robots.txt b/robots.txt
new file mode 100644
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new file mode 100644
index 0000000..78f4de3
--- /dev/null
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diff --git a/summary.html b/summary.html
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