style sheet changes and exported from html to markdown and back to html

Hi Paul, 

I am not sure whether you love this design or not . But the one that you pushed seems not good to me.

I would like to propose a few changes.

Make gh-pages as the default branch . Use something like http://getpoole.com/ .

It can render nicely so still things are written in markdown .

Will not be able to respond today for I may not be infront of computer.

Thank you