Review Request #11490 — Created Feb. 26, 2021 and submitted
rb-sitedocumentation hasn't been touched in a while. Some of the
options we've had were missing, particulaly the ones most recently
added. This change adds those in, removes some old options, and polishes
soem instructions (particularly around
Section reference names have been updated to be namespaced, to avoid
Built the docs. Checked for spelling and link errors.
Linked to some of the new options and the new section labels in the
upcoming release notes changes for 4.0 RC 1.