Update TOC

This commit updates the table of contents to reflect the body text.

Removes
* Instructors and Sponsors
* Other Lesson Material

Adds
* Page Content
* Lesson Material
* Site Map

Also includes a minor formatting improvement, pushing the FAQ section on to a new line.
Merge pull request #343 from timClicks/master

Update TOC
Using a bullet list for the table of contents
Merge pull request #345 from gvwilson/turning-readme-toc-into-list

Using a bullet list for the table of contents