Add spaces to list on right sidebar in front page.

#63 

Before:
![selection_863](https://cloud.githubusercontent.com/assets/4497748/4300285/d01462ca-3e42-11e4-835a-c4a8458cc37c.png)

After:
![selection_866](https://cloud.githubusercontent.com/assets/4497748/4300352/9580f2da-3e43-11e4-8e62-e463a24f6d62.png)