Learn git Interactively In The Browser

[thecodingaviator]

Refer to https://github.com/freeCodeCamp/freeCodeCamp/issues/16390

We want to eventually teach Git interactively in the browser. The best example I've found of doing this is this: https://github.com/pcottle/learnGitBranching

It's open source and runs completely client-side.

This something we could potentially fork and get working within the freeCodeCamp platform, though it would require heavy modification, since it's mostly using a modal-based lessons and a faked Git REPL.

Anyone interested in spiking on this?

[raisedadead]

See #194