add .me()

Author: litongjava

docs/zh/10_MQ/02.md

@@ -167,7 +167,7 @@ public class EmqxClientConfig {
       client.subscribe(topic, qos);
       log.info("Subscribed to topic: " + topic);
 
-      TioBootServer.addDestroyMethod(() -> {
+      TioBootServer.me().addDestroyMethod(() -> {
         try {
           client.disconnect();
           log.info("Disconnected");