[issue-214] - Update documentation for Infinispan 2.4.8/RHDG 8.5.4

[fabiobrz]

Description

SSIA, although there was little to be done, since CRDs didn't change lately, so just documentation here.

Resolves #214

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change
• Chore (non-breaking change which doesn't affect codebase;
  test, version modification, documentation, etc.)

Checklist

• Code contributed by me aligns with current project license: Apache 2.0
• Pull Request contains a description of the changes
• Pull Request does not include fixes for multiple issues/topics
• Code is self-descriptive and/or documented
• I have implemented unit tests to cover my changes
• I tested my code in OpenShift

[fabiobrz]

This is just about documentation, and good to be merged.