More docs cleanup (#7552)
* More docs improvements.
* timezone: mention which versions of AIX are supported.
(cherry picked from commit 58705d5ac3)
Co-authored-by: Felix Fontein <felix@fontein.de>
* Use semantic markup.
* Use 'ignore:' for alias reference.
* Ignore sanity errors for older ansible-core versions.
* Improve markup for RHSM modules.
Co-authored-by: Pino Toscano <ptoscano@redhat.com>
* 'ignore:' is no longer needed.
* E() now works better.
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Co-authored-by: Pino Toscano <ptoscano@redhat.com>