Jeremy Cline authored Sep 30, 2020 and Jeremy Cline committed Oct 06, 2020

This introduces a Sphinx documentation project and associated CI job. It
includes a minimal index page which will be expanded as individual pages
are added to the project.

The plan is to use the current wiki as a source for this new
documentation project and convert or rewrite things page-by-page. At
some point in the future we can set up redirects or otherwise point
folks who arrive at the old wiki pages to equivalent pages (or the home
page if no equivalent exists in the new documentation) and switch over.

These files, except for the index page, were auto-generated with
sphinx-quickstart.

Signed-off-by: Jeremy Cline <jcline@redhat.com>