add intro video topics and linked scenes to directly navigate to

content/docs/how-to-contribute.md

@@ -145,6 +145,13 @@ However, there are still some styles that the linter cannot pick up. If you are
 
 You may be interested in watching [this short video](https://www.youtube.com/watch?v=wUpPsEcGsg8) (26 mins) which gives an introduction on how to contribute to React.
 
+#### Available topics in this video directly linked:
+- build and test React locally [>](https://youtu.be/wUpPsEcGsg8?t=4m12s)
+- how to create and send pull requests to the React repository and how those are handled on project maintainer side [>](https://youtu.be/wUpPsEcGsg8?t=6m7s)
+- structure and organiztion of code: src files, entry points and module system [>](https://youtu.be/wUpPsEcGsg8?t=8m25s)
+- inspection and explanation of build/dist code pushed to npm registry [>](https://youtu.be/wUpPsEcGsg8?t=14m43s)
+- what to consider when adding new React features [>](https://youtu.be/wUpPsEcGsg8?t=19m15s)
+
 ### Meeting Notes
 
 React team meets once a week to discuss the development of React, future plans, and priorities. You can find the meeting notes in a [dedicated repository](https://github.com/reactjs/core-notes/).