RFR: Section on release notes [v3]

Mon Feb 21 00:34:40 UTC 2022

On Sat, 19 Feb 2022 00:16:32 GMT, Iris Clark <iris at openjdk.org> wrote:

>> I'd be happy to do that. Do you have any examples of good release notes?
>
> Perhaps a specific issue from the 18 notes:  https://jdk.java.net/18/release-notes (note that this link may be transient, but this JBS issues themselves are stable). The 17 release notes may also contain possibilities:  https://www.oracle.com/java/technologies/javase/17-relnote-issues.html .

I've added a link to the JDK Release Note index. Hopefully they are good enough to serve as examples.

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PR: https://git.openjdk.java.net/guide/pull/75