Merge pull request rms-open-letter#1223 from jharley/sign

Add Jason Harley

Author: neilmcgovern

index.md

@@ -644,6 +644,7 @@ identification purposes only and does not constitute endorsement.)</small>
 1. Jason Crain (GNOME)
 1. Jason DeTiberus (@detiber)
 1. Jason Griffey
+1. Jason Harley
 1. Jason LACAM (open-source and free software defender)
 1. Jason Robinson
 1. Jassie Badion (Collabora)