As a community blog, we're hoping that the majority of our content comes from our community members. As you may have noticed, there are currently two branches for this repository. The master branch is intended for posts that have either been published, or are queued to be published. The drafts folder stores posts that are not yet finished, and are being reviewed by the blog board.
If you are unfamiliar with contributing to a github repository, I'd suggest reading this article. It's a great, simple overview of how the process works.