[zh] sync install-kubeadm.md

content/zh-cn/docs/setup/production-environment/tools/kubeadm/install-kubeadm.md

@@ -365,10 +365,11 @@ Install CNI plugins (required for most pod network):
 安装 CNI 插件（大多数 Pod 网络都需要）：
 
 ```bash
-CNI_VERSION="v0.8.2"
+CNI_PLUGINS_VERSION="v1.1.1"
 ARCH="amd64"
-sudo mkdir -p /opt/cni/bin
-curl -L "https://github.com/containernetworking/plugins/releases/download/${CNI_VERSION}/cni-plugins-linux-${ARCH}-${CNI_VERSION}.tgz" | sudo tar -C /opt/cni/bin -xz
+DEST="/opt/cni/bin"
+sudo mkdir -p "$DEST"
+curl -L "https://github.com/containernetworking/plugins/releases/download/${CNI_PLUGINS_VERSION}/cni-plugins-linux-${ARCH}-${CNI_PLUGINS_VERSION}.tgz" | sudo tar -C "$DEST" -xz
 ```
 
 <!--
@@ -379,15 +380,15 @@ Define the directory to download command files
 {{< note >}}
 <!--
 The `DOWNLOAD_DIR` variable must be set to a writable directory.
-If you are running Flatcar Container Linux, set `DOWNLOAD_DIR=/opt/bin`.
+If you are running Flatcar Container Linux, set `DOWNLOAD_DIR="/opt/bin"`.
 -->
 `DOWNLOAD_DIR` 变量必须被设置为一个可写入的目录。
-如果你在运行 Flatcar Container Linux，可将 `DOWNLOAD_DIR` 设置为 `/opt/bin`。
+如果你在运行 Flatcar Container Linux，可设置 `DOWNLOAD_DIR="/opt/bin"`。
 {{< /note >}}
 
 ```bash
-DOWNLOAD_DIR=/usr/local/bin
-sudo mkdir -p $DOWNLOAD_DIR
+DOWNLOAD_DIR="/usr/local/bin"
+sudo mkdir -p "$DOWNLOAD_DIR"
 ```
 
 <!--
@@ -396,7 +397,7 @@ Install crictl (required for kubeadm / Kubelet Container Runtime Interface (CRI)
 安装 crictl（kubeadm/kubelet 容器运行时接口（CRI）所需）
 
 ```bash
-CRICTL_VERSION="v1.22.0"
+CRICTL_VERSION="v1.25.0"
 ARCH="amd64"
 curl -L "https://github.com/kubernetes-sigs/cri-tools/releases/download/${CRICTL_VERSION}/crictl-${CRICTL_VERSION}-linux-${ARCH}.tar.gz" | sudo tar -C $DOWNLOAD_DIR -xz
 ```