Also removes the bullet point prelude that was in b3. Change-Id: I3a5c71a93ab404f4a3bb236270706e97e0b12b0d
Updates the Glance Administration Guide and adds a release note. Depends-on: https://review.openstack.org/#/c/579507/ Change-Id: I87343b67614da8dea3a09b10456f4bfc0042ed0e