update module/README.md.

Signed-off-by: LuXiangcheng <luxiangcheng@openluat.com>

module/README.md

@@ -22,6 +22,8 @@ project：合宙基于该模组型号设计的产品，如开发板、核心板+
 
 MIT License
 
+```lua
 print("感谢您使用LuatOS ^_^")
 
-print("Thank you for using LuatOS ^_^")
+print("Thank you for using LuatOS ^_^")
+```