Write instructions on how to use github repository to submit articles instead of website

[durden]

his is a pretty crucial feature that we should highlight. I've tried to make sure that everything we do via the site can be accomplished via the github repo as well. This way we give developers maximum flexibility to create content with their own editor and workflows. However, we don't highlight this right now or give users instructions on how to do it.

[durden]

Another thing to consider is writing a small script users can run to create the details.json file for the article. This would be very easy to do and make sure the developer doesn't have to worry about anything but writing their content instead of creating a metadata file to conform to our standards. Another, possibly better, approach would be to create a post-commit hook on github.com that triggers this small script to create the details.json file.