5.0 docs: PEM support

[JamesNK]

PEM support (#23584)

Related: dotnet/AspNetCore.Docs#19113

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We're moving this issue to the Next sprint planning milestone for future evaluation / consideration. We will evaluate the request when we are planning the work for the next milestone. To learn more about what to expect next and how this issue will be handled you can read more about our triage process here.

[jkotalik]

@javiercn would you be able to take this doc issue?

[jkotalik]

bump @javiercn