Merge pull request rms-open-letter#1513 from gherlein/gherlein

added gherlein

Author: neilmcgovern

index.md

@@ -689,6 +689,7 @@ identification purposes only and does not constitute endorsement.)</small>
 1. Greg Day
 1. Greg Donald
 1. Greg Grossmeier
+1. Greg Herlein
 1. Gregory Smith (PostgreSQL, Crunchy Data)
 1. Grigorios Mingas (Research Data Scientist)
 1. Guilhem Moulin (Debian Developer)