Add code reference docs for the Review Bot worker.
Review Request #12142 — Created March 13, 2022 and submitted — Latest diff uploaded
This includes grouped sections for all parts of the Review Bot codebase
that might be relevant to tool developers or those working on/extending
existing tools.In the process, some syntax errors and missing module docs were found.
These have been fixed.
Built the docs. Inspected all the module pages, and the links in the
main doc index.