Merge pull request #948 from Karan-Palan/docs/update-readme-with-training

docs: update readme with sessions based on sistent

Author: amitamrutiya

CONTRIBUTING.md

@@ -117,6 +117,8 @@ To build a Docker image of the project, please ensure you have `Docker` installe
 make docker
 ```
 
+You can also refer to this "<a href="https://www.youtube.com/live/lsw9KA__iu4?si=o8gpZdSHcqO2OKxE">Training: contributing to Sistent</a>" and this <a href="https://www.youtube.com/live/yiXkxbibLUU?si=Dybj5qr0VLhLWEpl">Websites call</a> where experienced contributors have taught how to use sistent in your project or Meshery
+
 ### UI Lint Rules
 
 Layer5 uses ES-Lint to maintain code quality & consistency in our UI Code.