Octopress is a framework designed by Brandon Mathis for Jekyll, the blog aware static site generator powering Github Pages.
To start blogging with Jekyll, you have to write your own HTML
templates, CSS, Javascripts and set up your configuration. But with
Octopress
All of that is already taken care of. Simply clone or fork Octopress, install dependencies and the theme, and you’re set.
http://octopress.org/
