Update notes for submitted changes

* app_sendtext:  Enhance SendText to support Enhanced Messaging

3c/2249fd371d98441108211c1526a4092c088ac4

@@ -0,0 +1,9 @@
+Code-Review+1: Richard Mudgett <rmudgett@digium.com>
+Code-Review+1: Joshua Colp <jcolp@digium.com>
+Code-Review+2: Matthew Fredrickson <creslin@digium.com>
+Verified+2: George Joseph <gjoseph@digium.com>
+Submitted-by: George Joseph <gjoseph@digium.com>
+Submitted-at: Mon, 30 Apr 2018 07:35:17 -0500
+Reviewed-on: https://gerrit.asterisk.org/8764
+Project: asterisk
+Branch: refs/heads/13