Add author.

helloocc · helloocc · commit 1d8f668e100f · 2019-07-24T23:44:37.000+08:00
diff --git a/AUTHORS b/AUTHORS
@@ -258,6 +258,7 @@ Wil Cooley
 William Lee
 Wim Glenn
 Wouter van Ackooy
+Xixi Zhao
 Xuan Luong
 Xuecong Liao
 Zac Hatfield-Dodds
