Fixing display bug in wordCount method

Hey! I sat in on a code lab at Google NY today and noticed this incredibly minor bug during the workshop. This fixes the issue in the code samples but doesn't address the copy in the web walkthrough, which seems to live in another repo.

Thanks for having me!

![screen shot 2013-07-31 at 10 46 18 pm](https://f.cloud.github.com/assets/735604/891345/973af6a4-fa54-11e2-8f7d-21612eb4dfef.png)