Clarified language around release notes

[JesperIRL]

The word "note" was used to refer to a release note, a release note sub-task, and a comment in a JBS issue - this could be confusing. Made it more explicit.
Also updated the usage of Fix version for release notes which was not described correctly.

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• Iris Clark (@irisclark - Reviewer)

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• @Domest0s (no known openjdk.org user name / role)

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[openjdk]

@JesperIRL This change now passes all automated pre-integration checks.

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Clarified language around release notes

Reviewed-by: iris

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[mlbridge]

Webrevs

• 00: Full (49d228b7)

[Domest0s]

Nice improvements. I like them.

[Domest0s]

Might be a missing comma.

Suggested change

	* If an issue is backported to earlier releases the same release note will be used - just add the new release version in the [Affects Version/s]{.jbs-field} and [Fix Version/s]{.jbs-field} fields of the release note sub-task.
	* If an issue is backported to earlier releases, the same release note will be used - just add the new release version in the [Affects Version/s]{.jbs-field} and [Fix Version/s]{.jbs-field} fields of the release note sub-task.