Update notes for submitted changes

* res_musiconhold: Add new 'playlist' mode

9f/304170f6004c2fc4dcc23bef16194a816260c8

@@ -0,0 +1,9 @@
+Code-Review+1: Kevin Harwell <kharwell@digium.com>
+Code-Review+1: Joshua Colp <jcolp@digium.com>
+Code-Review+2: George Joseph <gjoseph@digium.com>
+Verified+2: Friendly Automation
+Submitted-by: Friendly Automation
+Submitted-at: Fri, 27 Sep 2019 07:44:52 -0500
+Reviewed-on: https://gerrit.asterisk.org/c/asterisk/+/12892
+Project: asterisk
+Branch: refs/heads/16