Minor changes to TopCoat template layout

Added some description to describe that the template is just a sample of TopCoat features
Added some navigation to the TopCoat template layout
![screenshot 2014-04-27 17 46 04](https://cloud.githubusercontent.com/assets/543635/2812830/ea018ed4-ce70-11e3-8f96-4b0a496fe1d6.png)