Jekyll configured.

Layout stuff configured now with Jekyll.  See the README.md file to see what a link looks like:

`[About]({{site.baseurl}}/about)`

There is this page with some notes, although I think I've done all the relevant stuff so that once you've accepted this PR then az...github.io/Gondor should look like mine and you can just add/edit .md files.

[http://24ways.org/2013/get-started-with-github-pages/](http://24ways.org/2013/get-started-with-github-pages/)

Oh, I remembered the tip you could use: she shows how you can set gh-pages as your default branch in settings.