You ain't gonna need it

Finally someone said it clearly: we have to Get Back to Coding.

Note: "Don't be pressured by the perceived popularity of Git to adopt Git. (Obviously, if you want to explore Git for your own edification, I'm not recommending against that. But understand that that choice will add complexity to your other work.)"

Just let me code

Discouraged Developer  

If you really need it, here is How to get started with GitHub