Contributor Wiki

Just some notes on how to contribute:

1. Please make pull requests of any changes. If you have commit rights, please wait 24 hours before committing your own pull request, but feel free to have another committer review and merge your request sooner.
2. When you do push to master, sync gh-pages using the setup detailed here: http://brettterpstra.com/2012/09/26/github-tip-easily-sync-your-master-to-github-pages/