diff --git a/README.md b/README.md
index 3e52af4..e73ac1a 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,8 @@
 
 ![](./build/doc/img/dingding.jpg)
 
+群号：23156361
+
 ### License
 
 [MIT](http://opensource.org/licenses/MIT)
diff --git a/build/doc/img/dingding.jpg b/build/doc/img/dingding.jpg
index e57bf54..eb5241d 100644
Binary files a/build/doc/img/dingding.jpg and b/build/doc/img/dingding.jpg differ