Communication docs: note that editing Matrix messages causes IRC spam (…

…#79238) (#79242)

(cherry picked from commit bc83da9)

docs/docsite/rst/community/communication.rst

@@ -49,7 +49,7 @@ The Ansible community maintains its own Matrix homeserver at ``ansible.im``, how
 Matrix chat supports:
 
 * persistence (when you log on, you see all messages since you last logged off)
-* edits (so you can fix your typos)
+* edits (Lets you fix typos and so on. **NOTE** Each edit you make on Matrix re-sends the message to IRC. Please try to avoid multiple edits!)
 * replies to individual users
 * reactions/emojis
 * bridging to IRC