update doc

en/_sources/advanced-use.md.txt

@@ -78,6 +78,16 @@ Arthas supports living inside a browser. The communication between arthas and br
 
 * [Web Console](web-console.md)
 
+## User data report
+
+After the `3.1.4` version, arthas support user data report.
+
+At startup, use the `stat-url` option, such as: `./as.sh --stat-url 'http://192.168.10.11:8080/api/stat'`
+
+There is a sample return code in the tunnel server that users can implement on their own.
+
+https://github.com/alibaba/arthas/blob/master/tunnel-server/src/main/java/com/alibaba/arthas/tunnel/server/app/web/StatController.java
+
 ## Other features
 
 * [Async support](async.md)