Explain how to disable warnings

Author: pquentin

docs/guide/release-notes.asciidoc

@@ -63,9 +63,15 @@
   * Add `include_remotes` and remove `flat_settings` from Cluster stats API
   * Add `remote_indices` to Create or update application privileges and Create or update roles APIs
 
+Note that the new Python warnings can be disabled as follows:
 
+[source,python]
+----
+import warnings
+from elasticsearch.exceptions import GeneralAvailabilityWarning
 
-
+warnings.filterwarnings("ignore", category=GeneralAvailabilityWarning)
+----
 
 [discrete]
 [[rn-8-15-1]]
@@ -77,8 +83,6 @@
 - Add `q` parameter to Update by Query API
 - Add `allow_no_indices` and `ignore_unavailable` parameters to Resolve index API
 
-
-
 [discrete]
 [[rn-8-15-0]]
 === 8.15.0 (2024-08-09)