Added recommended comments for cloud persistent types

[avishayh]

PR Checklist

[Place an '[x]' (no spaces) in all applicable fields. Please remove unrelated fields.]

• [ ] Chart Version bumped
• [ ] CHANGELOG.md updated
• [ ] Variables and other changes are documented in the README.md
• [ ] Title of the PR starts with chart name (e.g. [artifactory])

What this PR does / why we need it:

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

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[github-actions[bot]]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[avishayh]

I have read the CLA Document and I hereby sign the CLA

[gitta-jfrog]

Done internally and will be available in the next release