[zh-cn]Update content/zh-cn/_index.html

[zh-cn]Update content/zh-cn/_index.html

Author: suning0

content/zh-cn/_index.html

@@ -47,11 +47,14 @@
 <!-- #### Run Anywhere -->
 #### 永不过时
 
-<!-- Kubernetes is open source giving you the freedom to take advantage of on-premises, hybrid,
-or public cloud infrastructure, letting you effortlessly move workloads to where it matters to you. -->
+<!-- Kubernetes is open source giving you the freedom to take advantage of on-premises, 
+hybrid, or public cloud infrastructure, letting you effortlessly move workloads to where it matters to you.
+To download Kubernetes, visit the [download](/releases/download/) section. -->
 
 Kubernetes 是开源系统，可以自由地部署在企业内部，私有云、混合云或公有云，让您轻松地做出合适的选择。
 
+请访问[下载](/releases/download/)部分下载 Kubernetes。
+
 {{% /blocks/feature %}}
 
 {{< /blocks/section >}}