Fix broken markup on invites tab

Not sure if this is the right way to fix this, but current copyedit is breaking markup on invites tab.

Before:

![screen shot 2014-06-12 at 17 01 39](https://cloud.githubusercontent.com/assets/5732281/3257290/51007822-f228-11e3-8dab-febffb45a208.png)

After:

![screen shot 2014-06-12 at 17 23 58](https://cloud.githubusercontent.com/assets/5732281/3257291/52d7397e-f228-11e3-839e-2b09e1925958.png)