xref links are broken in docs and other doc issues

Productization changes to use xref for links do not render correctly with the usual gitbook build. They produce an invalid anchor link in the current doc.

There are also some pages that look like they weren't updated to the new page names. Running a regex like

:[^/A-Z:]*[A-Z][^/:]*.adoc

over the reference guide shows at least 86 now invalid links. broldan@redhat.com do you have a master list of old to new doc file names that could script getting those updated?