Link specific parts of the git_basics livestream to every appropriate section of the web site.

[HarshKapadia2]

• Add a link (with the timestamp of the appropriate section) of the git_basics livestream to the top of the appropriate section of the web site.
• All the topics and commands covered in the livestream are listed in the description of the video.
• On YouTube, click on 'share' and copy the link after checking the 'start at' checkbox (ensure that the correct timestamp for that section is entered in the input).

Eg: Add 'Watch a short video on git pull.' to the top of the git pull sub-section of the web site.