RFR: clarify how to set the affects versions [v8]

[David Holmes]

On Wed, 13 Mar 2024 20:26:43 GMT, Roger Calnan <duke at openjdk.org> wrote:

>> moved together information on how the set the affects version and the meaning of the (Rel)-na and (Rel)-wnf labelss
>
> Roger Calnan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   updates from feedback

Still fine.

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Marked as reviewed by dholmes (Author).

PR Review: https://git.openjdk.org/guide/pull/119#pullrequestreview-1941971749