Fixed a typo; fixed blockquote rendering

Closing tag `</blockquote>` needs to be in a separate line for Markdown to render properly.

* Before:
![screenshot from 2014-02-21 21 57 29](https://f.cloud.github.com/assets/342945/2234600/32af9554-9b3b-11e3-8474-f336be022860.png)

* After:
![screenshot from 2014-02-21 21 57 40](https://f.cloud.github.com/assets/342945/2234606/3973e444-9b3b-11e3-8b1c-65f3e943fffa.png)