Add @zhangkaizhao to contributors list.

Mishbah Razzaque · Mishbah Razzaque · commit e586329f128b · 2015-12-31T20:27:05.000Z
diff --git a/AUTHORS.rst b/AUTHORS.rst
@@ -10,4 +10,4 @@ Development Lead
 Contributors
 ------------
 
-None yet. Why not be the first?
+* zhangkaizhao - <zhangkaizhao@gmail.com>
