Building a Docs Site with Jekyll + GitHub Pages
blog.jetstrap.com
blog.jetstrap.com
Wordpress is a bit of a pain, but we found Harmony (http://harmonyapp.com) to be great at serving pages with programmable themes (think haml, sass, etc) that marketing people can still edit without bothering a developer.
Of course if you want marketing people to edit stuff asking them is use Git is going to be painful.