diff --git a/README.md b/README.md
index 40f50b6..c750f3a 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 代码目录结构如下：
 
+```shell
 ├── README.md
 ├── client
 │   ├── README.md
@@ -14,3 +15,4 @@
     ├── manager_user.sh
     ├── proto.md
     └── requirements.txt
+```