Add comments for using the latest version of krel and that the releas…

[Checksumz]

…e notes website is only required in the final relelease

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What this PR does / why we need it:

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[shecodesmagic]

/lgtm

[Checksumz]

@sanchita-07 @csantanapr please review and approve

[Checksumz]

/lgtm

[k8s-ci-robot]

@Checksumz: you cannot LGTM your own PR.

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/lgtm

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[Checksumz]

@sanchita-07 please can you review and approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Checksumz, npolshakova, sanchita-07

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