doc: update AUTHORS list

Update AUTHORS list using tools/update-authors.sh

PR-URL: #1476
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

AUTHORS

@@ -744,5 +744,8 @@ Giovanny Andres Gongora Granada <gioyik@gmail.com>
 Jeffrey Jagoda <jeffrey.jagoda@gmail.com>
 Kelsey Breseman <ifoundthemeaningoflife@gmail.com>
 Peter Petrov <onestone@gmail.com>
+Andrew Crites <acrites@mobiquityinc.com>
+Marat Abdullin <dakota@brokenpipe.ru>
+Dan Varga <dvarga@redhat.com>
 
 # Generated by tools/update-authors.sh