diff --git a/Maca3.0.md b/Maca3.0.md
index 08a5c1c..22cbfa6 100644
--- a/Maca3.0.md
+++ b/Maca3.0.md
@@ -16,16 +16,15 @@
 1. **添加仓库并更新缓存**
 
    ```bash
- cat <<EOF> /etc/yum.repos.d/maca-sdk-rpm.repo 
-[maca]
-name=Maca Yum Repository
-baseurl=https://mirror.metax-tech.com/maca-sdk-rpm/
-enabled=1
-gpgcheck=0
-EOF
-
-yum makecache
+    cat <<EOF> /etc/yum.repos.d/maca-sdk-rpm.repo 
+   [maca]
+   name=Maca Yum Repository
+   baseurl=https://mirror.metax-tech.com/maca-sdk-rpm/
+   enabled=1
+   gpgcheck=0
+   EOF
 
+   yum makecache
 
 
 ### 安装 DEB 包