A+C: add zhangjian (individual CLA)

Change-Id: I16aa541ac9d2d5927e58051a6293e2bd069b6c4e
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/413834
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
diff --git a/AUTHORS b/AUTHORS
index a061389..31c9c8f 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -46,3 +46,4 @@
 Vinu Rajashekhar <vinutheraj@gmail.com>
 Western Digital Technologies, Inc.
 Xia Bin <snyh@snyh.org>
+zhangjian <zj.cosmos@gmail.com>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 0de1d00..f6234f9 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -81,3 +81,4 @@
 Vladimir Mezentsev <vladimir.mezentsev@oracle.com>
 Xia Bin <snyh@snyh.org>
 Xiangdong JI <xiangdong.ji@arm.com>
+zhangjian <zj.cosmos@gmail.com>