This repo is still tiny, and putting up a huge formal code of conduct feels misplaced: How could there be a community leader if there's currently just one person hacking ;-)
In either case, I am happy that you are considering contributing. For what regards a code of conduct: Don't be an ***hole. If in doubt, try to be nicer.
If you feel badly treated by anyone in this repo, or know anyone that feels that way, please contact Michael Weiss immediately. Contact details on mweiss.ch.
THANKS! :-)