Create Blocks

docathon #222. i have a screenshot to add on line 8 but could not figure out how put it in this doc unless i did it below. let me know


![screen shot 2014-12-16 at 11 02 30 am](https://cloud.githubusercontent.com/assets/4183344/5459176/e8897da8-8515-11e4-807e-cbc323d21901.png)