fix(legal): fix layout of statically rendered legal pages

Fixes #1420.

@shane-tomlinson r?
We should put the `browsehappy` section inside of the `main-content`, otherwise we see:

![screen shot 2014-07-23 at 13 15 35](https://cloud.githubusercontent.com/assets/848085/3672648/26ce2ca6-1263-11e4-9576-3758c0ca7dac.png)