adjust README

Author: perfgao

README.md

@@ -58,12 +58,12 @@ A
 select * from
 English
 \u0045\u006e\u0067\u006c\u0069\u0073\u0068
-??
+汉字
 \u6c49\u5b57
-??
+漢字
 \u6f22\u5b57
-???????  ?????
+русский  текст
 \u0440\u0443\u0441\u0441\u043a\u0438\u0439\u0020\u0020\u0442\u0435\u043a\u0441\u0442
-????????
+بالعربية
 \u0628\u0627\u0644\u0639\u0631\u0628\u064a\u0629
 ```