Create building and contributing md files. #44
Description
>> See BUILDING.md. Also make sure to read CONTRIBUTING.md if you plan to help.
These files don't seem to exist-- did they move or something? I feel like we should throw a few things in here for our future selves.
Hmm, not sure. Maybe I forgot to add these. Feel free to fill some stuff in if you're keen on it!
A separate PR from this one would be good.
Originally posted by @lloeki in #37 (comment)