[jdk26] RFR: 8375683: Add notes for sctp tests

[SendaoYan]

On Mon, 26 Jan 2026 17:08:17 GMT, Iris Clark <iris at openjdk.org> wrote:

>> Hi all,
>> 
>> This pull request contains a backport of commit [93255602](https://github.com/openjdk/jdk/commit/932556026d6d49fe6f74d4ec4afcb72448611766) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository to jdk26 branch.
>> 
>> The commit being backported is add the descriptions about hwo to running the SCTP tests. Only touch the testing.md/testing/html.
>> 
>> Thanks!
>
> Confirmed backport matches changes already pushed to 'master' branch.

Thanks for the reviews @irisclark @erikj79

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PR Comment: https://git.openjdk.org/jdk/pull/29399#issuecomment-3802722539