diff --git a/doc/sandbox.mdwn b/doc/sandbox.mdwn
index b82799a4b..bab6febb9 100644
--- a/doc/sandbox.mdwn
+++ b/doc/sandbox.mdwn
@@ -14,6 +14,9 @@ There are Polish diacritical characters: ą, ć, ę, ł, ń, ó, ś, ż, ź.
 
 Korean characters test : 한글테스트입니다.
 
+測試 
+
+
 some hindī? हिन्दी
 
 # Header