Long, but highly suggested git and GitHub course:
Super quick git guides:
Slightly longer git guides:
- https://try.github.io/levels/1/challenges/1
- https://www.youtube.com/watch?v=8oRjP8yj2Wo&index=1&list=PLg7s6cbtAD165JTRsXh8ofwRw0PqUnkVH
Longer git guides:
GitHub Guides:
- https://guides.github.com/ - specifically "Understanding the GitHub Flow" & "Hello World"
- https://www.youtube.com/watch?v=0fKg7e37bQE