Create a README.md

[bcipolli]

This project needs some insight into what it is, it's state, and contributors. So that as we have activity, we're clear on how to direct them. Please ~

@JelmerT I believe you have the most context here, so going to put this on your plate. No rush! cc @asingularity

[JelmerT]

I didn't have access to this repo until very recently, so I'm not sure actually.

I think @asingularity could clear it up.