Remove trailing spaces from zh documents(#16742) (#16794)

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

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 You need to have a Kubernetes cluster. Follow the [kubeadm getting started guide](/docs/getting-started-guides/kubeadm/) to bootstrap one.
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 您需要拥有一个 Kubernetes 集群。按照[kubeadm 入门指南](/docs/getting-started-guides/kubeadm/)来引导一个。
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 ## Install the Weave Net addon
 
 Follow the [Integrating Kubernetes via the Addon](https://www.weave.works/docs/net/latest/kube-addon/) guide.
@@ -34,7 +34,7 @@ The Weave Net addon for Kubernetes comes with a [Network Policy Controller](http
 按照[通过插件集成Kubernetes](https://www.weave.works/docs/net/latest/kube-addon/)指南。
 
 Kubernetes 的 Weave Net 插件带有[网络策略控制器](https://www.weave.works/docs/net/latest/kube-addon/#npc)，可自动监控 Kubernetes 所有名称空间中的任何 NetworkPolicy 注释。 配置`iptables`规则以允许或阻止策略指示的流量。
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 ## Test the installation
 
 Verify that the weave works.
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 Once you have installed the Weave Net addon, you can follow the [Declare Network Policy](/docs/tasks/administer-cluster/declare-network-policy/) to try out Kubernetes NetworkPolicy. If you have any question, contact us at [#weave-community on Slack or Weave User Group](https://github.com/weaveworks/weave#getting-help).
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