This implements the reorganization we talked about, plus some other things:
For probably the first time, I moved through the entire manual from beginning to end, ensuring that it made sense in its current order and reformatting some content I missed in #4.
I committed some changes to the API layout pages that had been sitting around locally for a long time.
I rewrote and restyled the “blocks” partial to flow in two columns instead of going left-right-left-right; I think this makes the intended order of consumption clearer without making it seem like you must read linearly.
Closes #6.
This implements the reorganization we talked about, plus some other things: