Git lessons--resources to possibly add

[DanielLopez10122]

Thanks to Matt, Sarah, and Jason for the good git lessons! I wanted to pass along some helpful git resources in case you all think they'd be useful for the Code/Astro folks.

• Pro Git (2nd Edition) by Scott Chacon and Ben Straub: a book on what git is (including how it works), why it was made, and how to use it. I've mostly only read the first couple of chapters, but it seems comprehensive. Scott Chacon is one of the co-founders of GitHub.
• Git cheat sheet by Atlassian: There are others, but this is one I've found useful (besides googling stuff like Sarah said).