Update ROOT course and video links and update ROOT project descriptio…

…n. (#1584)

_data/training-modules.yaml

@@ -56,10 +56,10 @@
   id: cmake
 - description: 'The most famous data analysis framework used in HEP.'
   name: <code>ROOT</code>
-  repository: 'https://github.com/root-project/software-carpentry'
+  repository: 'https://github.com/root-project/student-course'
   status: stable
-  videos: ''
-  webpage: 'https://github.com/root-project/software-carpentry'
+  videos: 'https://videos.cern.ch/record/2300516'
+  webpage: 'https://github.com/root-project/student-course'
   id: root
 - description: Reading and writing ROOT files without having to install ROOT.
   name: <code>uproot</code>

_gsocprojects/2024/project_ROOT.md

@@ -6,11 +6,9 @@ description: |
   [ROOT](http://root.cern.ch) is a modular scientific software framework developed by [CERN](http://cern.ch) and other Particle Physics laboratories.
   It was originally designed for particle physics data analysis, but it is also used in other applications such as astronomy, bio-informatics, finances, etc.
   It provides all the functionalities needed to deal with big data processing, statistical analysis, data visualisation and data storage.
-  It is mainly written in C++ but integrated with other languages such as Python and R.
 summary: |
   A modular scientific software framework. It provides all the functionalities needed to deal with big data processing,
-  statistical analysis, visualisation and storage. It is mainly written in C++ but integrated with other languages such
-  as Python and R.
+  statistical analysis, visualisation and storage.
 ---
 
 {% include gsoc_project.ext %}