添加事件监听相关信息

README.md

@@ -94,4 +94,23 @@ Tpns.upsertAccounts([{
 Tpns.clearAndAppendTags(new nanoId(),['tag1','tag2'],console.log,console.error);
 ```
 
+#### 4. 事件监听
+
+```javascript
+// 接收消息事件
+window.addEventListener(Tpns.Constant.EVENT_ON_TEXT_MESSAGE,function(event){
+    console.log("接收到消息:",event);
+});
+
+// 已显示通知
+window.addEventListener(Tpns.Constant.EVENT_ON_NOTIFICATION_SHOWED_RESULT,function(event){
+    console.log("已显示通知:",event);
+});
+
+// 消息点击事件
+window.addEventListener(Tpns.Constant.EVENT_ON_NOTIFICATION_CLICKED_RESULT,function(event){
+    console.log("消息点击事件:",event);
+});
+```
+
 ##### 5.其他方法参考js注释