diff --git a/MXRDMA.md b/MXRDMA.md
index 3f385ff..ac564ef 100644
--- a/MXRDMA.md
+++ b/MXRDMA.md
@@ -23,14 +23,14 @@
 
 *   **配置YUM源**
 
-    ```bash
-   cat <<EOF> /etc/yum.repos.d/maca-rdma-rpm.repo 
-   [maca-rdma]
-   name=Maca Rdma Yum Repository
-   baseurl=https://repos.metax-tech.com/r/maca-rdma-rpm-$(uname -m)/
-   enabled=1
-   gpgcheck=0
-   EOF
+    ```shell
+    cat <<EOF> /etc/yum.repos.d/maca-rdma-rpm.repo 
+    [maca-rdma]
+    name=Maca Rdma Yum Repository
+    baseurl=https://repos.metax-tech.com/r/maca-rdma-rpm-$(uname -m)/
+    enabled=1
+    gpgcheck=0
+    EOF
    
    yum makecache
     ```
@@ -53,9 +53,9 @@
 *   **配置APT源**
 
     ```bash
-   curl -fsSL https://repos.metax-tech.com/public.gpg.key | apt-key add -
-   echo "deb [arch=$(dpkg --print-architecture)] https://repos.metax-tech.com/r/maca-rdma-deb/ stable main" | tee /etc/apt/sources.list.d/maca-rdma-deb.list
-   apt-get update
+    curl -fsSL https://repos.metax-tech.com/public.gpg.key | apt-key add -
+    echo "deb [arch=$(dpkg --print-architecture)] https://repos.metax-tech.com/r/maca-rdma-deb/ stable main" | tee /etc/apt/sources.list.d/maca-rdma-deb.list
+    apt-get update
     ```
 
 #### 安装MXRDMA