Small css tweak to wrap the article title

Small tweak make the article title text wrap to the next line rather than being cut off.

Before:
![img_3472](https://f.cloud.github.com/assets/858414/449082/849a0736-b267-11e2-8c56-330885bafbf2.png)

After:
![img_3471](https://f.cloud.github.com/assets/858414/449083/883c32c4-b267-11e2-88f3-3cf37f41851d.png)