Rename the Release Cycle page to "Maintenance and Support" and add a
table of the Kubernetes and Ceph versions supported by each Rook minor
release series (1.12 through 1.20).
The per-series numbers are sourced from each release branch's
prerequisites/quickstart guide (Kubernetes) and Ceph upgrade guide
(Ceph), giving users a single place to check version compatibility
across releases. A redirect preserves the previous release-cycle URL.
Signed-off-by: Joshua Hoblitt <josh@hoblitt.com>
Joshua Hoblitt
a346690ae3