Update CREDITS.TXT

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187936 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CREDITS.TXT b/CREDITS.TXT
index 7a5c94d..5e4d14e 100644
--- a/CREDITS.TXT
+++ b/CREDITS.TXT
@@ -105,6 +105,10 @@
 E: zhangxiongpang@gmail.com
 D: Minor patches and bug fixes.
 
+N: Zhihao Yuan
+E: lichray@gmail.com
+D: Standard compatibility fixes.
+
 N: Jeffrey Yasskin
 E: jyasskin@gmail.com
 E: jyasskin@google.com