This is actually a good idea, but I might take it a step further and deploy my own Git server (even as a backup). If GitHub goes down or your billing lapses, yo

This is actually a good idea, but I might take it a step further and deploy my own Git server (even as a backup). If GitHub goes down or your billing lapses, you'll loose access to those documents. Plus, with your own server, if there is some sort of catastrophic GitHub breach you'll be confident your data is okay.