Adding background to features in word

This is a naive attempt at modifying the word generator to include backgrounds. I'm not sure it's the best, so you may want to adjust styling and such - sorry if it's not that elegant, I had never generated word documents from c#.

Here is the result (in libreoffice, you may want to try it in word... I'll give it a try in word tomorrow)

![2013-08-08_23-24_628x274](https://f.cloud.github.com/assets/541961/936202/1a2df354-00a4-11e3-8c74-cd61ddb31aa1.png)