fix the base url

Author: davegolland

_config.yml

@@ -5,7 +5,7 @@ title: Prismatic Blog
 #  Write an awesome description for your new site here. You can edit this
 #  line in _config.yml. It will appear in your document head meta (for
 #  Google search results) and in your feed.xml site description.
-baseurl: "/blog" # the subpath of your site, e.g. /blog/
+baseurl: "/" # the subpath of your site, e.g. /blog/
 url: "http://github.com/prismatic/"
 #twitter_username: jekyllrb
 #github_username:  jekyll