[zh] Fix custom heading ID

Author: jihoon-seo

content/zh/docs/tasks/administer-cluster/kubeadm/adding-windows-nodes.md

@@ -269,7 +269,7 @@ to do so are available at [Install Docker Engine - Enterprise on Windows Servers
 All code snippets in Windows sections are to be run in a PowerShell environment
 with elevated permissions (Administrator) on the Windows worker node.
 -->
-### 加入 Windows 工作节点   {joining-a-windows-worker-node}
+### 加入 Windows 工作节点   {#joining-a-windows-worker-node}
 
 你必须安装 `Containers` 功能特性并安装 Docker 工具。相关的指令可以在
 [Install Docker Engine - Enterprise on Windows Servers](https://hub.docker.com/editions/enterprise/docker-ee-server-windows)