Change notes: Ideas for getting to the next level of user docs

I write docs in the change notes (see below), figuring at some point I'll go through the outline and pick out things that are not in the published docs.#

But I know I've missed a lot.#

This is another kind of review we could do together, and in doing so create a new level of thoroughness in software docs.#

I also think we should do the index-in-the-back-of-the-book type thing for these docs, by hand, to get the experience. #