[zh-cn] sync task files of task-11

Signed-off-by: Guangwen Feng <fenggw-fnst@fujitsu.com>

Author: fenggw-fnst

content/zh-cn/docs/tasks/administer-cluster/certificates.md

@@ -34,7 +34,7 @@ manually through [`easyrsa`](http://github.com/OpenVPN/easy-rsa), [`openssl`](h
 1. 下载、解压、初始化打过补丁的 `easyrsa3`。
 
    ```shell
-   curl -LO http://storage.googleapis.com/kubernetes-release/easy-rsa/easy-rsa.tar.gz
+   curl -LO http://dl.k8s.io/easy-rsa/easy-rsa.tar.gz
    tar xzf easy-rsa.tar.gz
    cd easy-rsa-master/easyrsa3
    ./easyrsa init-pki

content/zh-cn/docs/tasks/administer-cluster/cluster-upgrade.md

@@ -1,10 +1,12 @@
 ---
 title: 升级集群
 content_type: task
+weight: 350
 ---
 <!--
 title: Upgrade A Cluster
 content_type: task
+weight: 350
 -->
 
 <!-- overview -->

content/zh-cn/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade.md

@@ -1,14 +1,14 @@
 ---
 title: 升级 kubeadm 集群
 content_type: task
-weight: 20
+weight: 40
 ---
 <!--
 reviewers:
 - sig-cluster-lifecycle
 title: Upgrading kubeadm clusters
 content_type: task
-weight: 20
+weight: 40
 -->
 
 <!-- overview -->
@@ -476,7 +476,7 @@ without compromising the minimum required capacity for running your workloads.
   ```
 
   {{% /tab %}}
-  {{% tab name="CentOS, RHEL or Fedora" %}}
+  {{% tab name="CentOS、RHEL 或 Fedora" %}}
 
   ```shell
   # 将 {{< skew currentVersion >}}.x-0 x 替换为最新的补丁版本

content/zh-cn/docs/tasks/administer-cluster/network-policy-provider/_index.md

@@ -1,8 +1,8 @@
 ---
 title: 安装网络策略驱动
-weight: 30
+weight: 50
 ---
 <!--
 title: Install a Network Policy Provider
-weight: 30
+weight: 50
 -->