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_865](https://cloud.githubusercontent.com/assets/4497748/4300288/d61c54de-3e42-11e4-8af1-3eac7776ed1c.png)