Update notes for submitted changes

* res_pjsip.c: Support endpoints with domain info in username

b2/1d4d1b87abff7221c1b79af3426790c3b091da

@@ -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: George Joseph <gjoseph@digium.com>
+Submitted-by: George Joseph <gjoseph@digium.com>
+Submitted-at: Wed, 26 May 2021 10:36:59 -0500
+Reviewed-on: https://gerrit.asterisk.org/c/asterisk/+/15923
+Project: asterisk
+Branch: refs/heads/18