fix format

Author: Forairaaaaa

examples/Modules/RS232/RS232.ino

@@ -4,8 +4,9 @@
 *                  Equipped with M5Core sample source code
 *                          配套  M5Core 示例源代码
 * Visit for more information:
-*https://docs.m5stack.com/en/module/RS232F%Module%13.2 获取更多资料请访问:
-*https://docs.m5stack.com/zh_CN/module/RS232F%Module%13.2
+* 获取更多资料请访问:
+* https://docs.m5stack.com/en/module/RS232F%Module%13.2
+* https://docs.m5stack.com/zh_CN/module/RS232F%Module%13.2
 *
 * Describe: RS232.
 * Date: 2023/3/23