[ISPN-11698] Operator Docs: Fixes to xsite docs - Red Hat Issue Tracker

This issue belongs to an archived project. You can view it, but you can't modify it. Learn more

Epic Link:
[DG8] Cloud
Affects:

Documentation (Ref Guide, User Guide, etc.), Compatibility/Configuration, User Experience
Git Pull Request:
https://github.com/infinispan/infinispan-operator/pull/377, https://github.com/infinispan/infinispan-operator/pull/376

Need to add missing role to service accounts and clarify that the Operator expects clusters to have the same names as namespaces