Update notes for submitted changes

* documentation: Add information on running install_prereq script in readme

e4/ad8b223f8aa492e299da68aa27a48ca13d2710

@@ -0,0 +1,9 @@
+Code-Review+1: Joshua Colp <jcolp@sangoma.com>
+Code-Review+1: Kevin Harwell <kharwell@digium.com>
+Code-Review+2: Benjamin Keith Ford <bford@digium.com>
+Verified+2: Joshua Colp <jcolp@sangoma.com>
+Submitted-by: Joshua Colp <jcolp@sangoma.com>
+Submitted-at: Mon, 28 Mar 2022 11:33:35 -0500
+Reviewed-on: https://gerrit.asterisk.org/c/asterisk/+/18269
+Project: asterisk
+Branch: refs/heads/16