This was amazing to watch for me.. I've always been confused about Github, and now I feel a little more comfortable to explore how it actually works.
If code is to be adopted at a higher than current rate, more code-based things should be explained in this style.
The Bitbucket git tutorials are pretty good. Helps me to get a visualization on things.
Fun fact, the Mac native VoiceOver pronounces it GIT-THUB.