move final paragraphs into eight column section

Currently, the cookbook and intro pages have final paragraphs that are much wider than the previous content, and have no padding on the left.  Currently, it looks like:

![Screen Shot 2013-01-24 at 11 46 01 AM](https://f.cloud.github.com/assets/475621/94267/92f2a0cc-6645-11e2-88d4-42d42c47bd02.png)

I've moved these into the previous sections, and now this looks like:

![Screen Shot 2013-01-24 at 11 46 41 AM](https://f.cloud.github.com/assets/475621/94272/b6d90f44-6645-11e2-8930-dcc67c5cacd4.png)