[jdk19] RFR: 8290207: Missing notice in dom.md

[Joe Wang]

On Wed, 13 Jul 2022 16:28:10 GMT, Iris Clark <iris at openjdk.org> wrote:

>> The pre tag is supported for code blocks by most markdown implementations so this should be OK and as Joe mentions has been there for ages in this file.
>
> Agree.  I think the `pre` tag will be fine in this instance.

Thanks!

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PR: https://git.openjdk.org/jdk19/pull/138