Update k8s.tlsSecretName property behaviour doc

[mmorhun]

Signed-off-by: Mykola Morhun mmorhun@redhat.com

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What does this PR do?

Updates docs regarding k8s.tlsSecretName CR field property.

What issues does this PR fix or reference?

eclipse-che/che#18079

Specify the version of the product this PR applies to.

Since merge of eclipse-che/che-operator#508

PR Checklist

As the author of this Pull Request I made sure that:

• vale has been run successfully against the PR branch
• Link checker has been run successfully against the PR branch
• Documentation describes a scenario that is already covered by QE tests, otherwise an issue has been created and acknowledged by Che QE team
• Changed article references are updated where they are used (or a redirect has been set up on the docs side):
  • Dashboard branding.json
  • Chectl constants.ts

[mmorhun]

@boczkowska thank you for the corrections. However vale check is still failing because of words if and should. Deleting them and rewording looks artificial for me. What is the right procedure in such a case?

[yhontyk]

@mmorhun I find the use of if and should to be correct and acceptable here. I'll file an issue to tune those vale rules.

I'll approve the PR, please merge when ready. Note that currently we publish 7.21 docs from the master branch. If it applies to the future release, we'll have to wait until the next release is GA.