books/porters-handbook: Add a note about portsmon out of service

[dbaio]

Summary

Maybe soon portsmon can be fixed, so just let a note to inform users
that this resource is currently not working.

Test Plan

The resulting document can be seen here and here.

[pauamma_gundo.com]

documentation/content/en/books/porters-handbook/keeping-up/_index.adoc

84

documentation/content/en/books/porters-handbook/upgrading/_index.adoc

42

[dbaio]

• Fix grammar, tks pauamma

[mat]

As said python updates date back to 2019 or something, maybe portsmon bits should be removed or commented out.

[dbaio]

In D29717#666530, @mat wrote:

As said python updates date back to 2019 or something, maybe portsmon bits should be removed or commented out.

@mat what about adding this note and wait for 3 or 6 months? If we don't have any progress we can remove that. And I can add this reminder for myself.

There is D29715 as well that adds this note.

ps. I pinged Mark about that

[mat]

Sure, yes.

[ygy]

In D29717#667346, @dbaio wrote:

what about adding this note and wait for 3 or 6 months? If we don't have any progress we can remove that. And I can add this reminder for myself.

Please! Thanks!

[koobs]

FWIW, portmon has been dead due to 'python' for more than a few years. It is unrelated to 'latest Python updates' which is ambiguous.