diff --git a/SIG-list.md b/SIG-list.md
index e21bbc1afc49775afb15345c4851e36f17b05349..0f40b08281ce433f870acf6df3f39caf05926047 100644
--- a/SIG-list.md
+++ b/SIG-list.md
@@ -1,3 +1,4 @@
+```
 community (仓库)
 ├── 平台开发SIG (目录)
 ├── 镜像管理SIG (目录)
@@ -8,4 +9,5 @@ community (仓库)
 ├── contributing.md (文件)
 ├── governance.md (membership.md) (文件)
 ├── LICENSE
-├── MAINTAINERS.md (文件，介绍整个项目的maintainer职责分工和看护情况)
\ No newline at end of file
+├── MAINTAINERS.md (文件，介绍整个项目的maintainer职责分工和看护情况)
+```