36bbc39 renamed some pages but did not update the references to
them, and did not uncomment the page-aliases line for the 'how
to file a bug' page, so attempting to access it by its old name
(either from an external link or from the table of contents)
ended in a 404. This should fix everything up, tested locally.
Signed-off-by: Adam Williamson <awilliam@redhat.com>