update docs phrasing

Author: thisisnic

docs/source/developers/guide/communication.rst

@@ -119,6 +119,12 @@ It is announced on the development mailing list together with the link to join.
 .. seealso::
   More information and links for subscribing to the mailing lists `can be found here <https://arrow.apache.org/community/>`_.
 
+.. note::
+   Using AI tools to help with phrasing or grammar is fine and doesn't need to be
+   disclosed. However, if AI is more involved in your workflow (e.g. generating
+   questions or diagnosing errors), please let us know so we can tailor our
+   responses appropriately.
+
 Recommended learning resources
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~