Add myself to the AUTHORS (celery#4254)

argsno · auvipy · commit 9ca61fa13c35 · 2017-09-08T13:43:52.000+06:00
diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
@@ -249,3 +249,4 @@ Sammie S. Taunton, 2017/08/17
 Kxrr, 2017/08/18
 Mads Jensen, 2017/08/20
 Markus Kaiserswerth, 2017/08/30
+Andrew Wong, 2017/09/07
