The parts I've edited so far give some good information and tips on how to build websites in Movable Type 5. Especially since the concept of "websites" (potentially having one or more sub-blogs) is new to MT5 and one of the main differences with Movable Type 4. In this new structure it is vital to know which modules and templates to have at which level. Also important are the proper ways to include them on other levels without getting unexpected output.
There are plenty of example images and code snippets to re-use too. Go have a look and check back often!
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This is wonderful, and makes up for the woeful lack of MT5 documentation on the main site. Thank you!