Merge pull request #2674 from clairbarrass/main

Update 241202-lammps.md

_courses/241202-lammps.md

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 prace_course: 
 audience: [ researcher ]
 level: [ introductory ]
-video: 
+video: true
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 LAMMPS (Large-scale Atomic/Molecular Massively Parallel Simulator) is a widely-used classical molecular dynamics (MD) code. This C++ code is easy to use, incredibly versatile, and parallelised to run efficiently on both small-scale personal computers and CPU/GPU/CPU&GPU HPC clusters. As of 2023, LAMMPS has been used, to some degree, in over 40,000 publications in fields as varied as chemistry, physics, material science, granular and lubricated-granular flow.
@@ -88,14 +88,14 @@ To follow
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 	<iframe title="Video" width="560" height="315" src="https://www.youtube.com/embed/Rdn_OtZMY9s " frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 </div>
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 <h3>Session 2</h3>
 
 <div>
-	<iframe title="Video" width="560" height="315" src="https://www.youtube.com/embed/XsHGsS0JMr4 " frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+	<iframe title="Video" width="560" height="315" src="https://www.youtube.com/embed/djdx3bYH-f0 " frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 </div>
 
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