Update notes for submitted changes

* app_confbridge: Plug ref leak of bridge channel with send_events

b9/f42a717efec91229d22e04fd9f0e356a58e1c0

@@ -0,0 +1,9 @@
+Code-Review+1: Joshua Colp <jcolp@sangoma.com>
+Code-Review+1: Benjamin Keith Ford <bford@digium.com>
+Code-Review+2: George Joseph <gjoseph@digium.com>
+Verified+2: Friendly Automation
+Submitted-by: Friendly Automation
+Submitted-at: Wed, 10 Jun 2020 11:03:04 -0500
+Reviewed-on: https://gerrit.asterisk.org/c/asterisk/+/14523
+Project: asterisk
+Branch: refs/heads/master