[zh-cn]sync kubeadm_version/_index.md

Signed-off-by: xin.li <[email protected]>

Author: my-git9

content/zh-cn/docs/reference/setup-tools/kubeadm/generated/kubeadm_version/_index.md

@@ -1,8 +1,3 @@
-<!--
-Print the version of kubeadm
--->
-打印 kubeadm 的版本。
-
 <!--
 ### Synopsis
 -->
@@ -13,7 +8,7 @@ Print the version of kubeadm
 -->
 打印 kubeadm 的版本。
 
-```
+```shell
 kubeadm version [flags]
 ```