Prepare the upstream training doc for Austin
Prepare the upstream training doc for Austin

New dates and form we're using that combines the effort with the
OpenStack mentoring program sponsored by the Women of OpenStack.
Removing the mentor wiki page link in hopes we can just the form results
in order to consolidate all the places we have mentor information.

Change-Id: I3cfc2eb6ba01e362434fedbbfaa0759f22924720

openstack/training-guides,openstack/training-guides