[zh] translate Migrating from dockershim

make change according to howieyuen and ydFu

content/zh/docs/tasks/administer-cluster/migrating-from-dockershim/_index.md

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+---
+title: "从 dockershim 迁移"
+weight: 10
+content_type: task 
+---
+<!-- 
+title: "Migrating from dockershim"
+weight: 10
+content_type: task 
+-->
+
+<!-- overview -->
+
+<!-- 
+This section presents information you need to know when migrating from
+dockershim to other container runtimes.
+-->
+本节提供从 dockershim 迁移到其他容器运行时的必备知识。
+
+<!-- 
+Since the announcement of [dockershim deprecation](/blog/2020/12/08/kubernetes-1-20-release-announcement/#dockershim-deprecation)
+in Kubernetes 1.20, there were questions on how this will affect various workloads and Kubernetes
+installations. You can find this blog post useful to understand the problem better: [Dockershim Deprecation FAQ](/blog/2020/12/02/dockershim-faq/)
+-->
+自从 Kubernetes 1.20 宣布
+[弃用 dockershim](/zh/blog/2020/12/08/kubernetes-1-20-release-announcement/#dockershim-deprecation)，
+各类疑问随之而来：这对各类工作负载和 Kubernetes 部署会产生什么影响。
+你会发现这篇博文对于更好地理解此问题非常有用：
+[弃用 Dockershim 常见问题](/zh/blog/2020/12/02/dockershim-faq/)
+
+<!-- It is recommended to migrate from dockershim to alternative container runtimes.
+Check out [container runtimes](/docs/setup/production-environment/container-runtimes/)
+section to know your options. Make sure to
+[report issues](https://github.com/kubernetes/kubernetes/issues) you encountered
+with the migration. So the issue can be fixed in a timely manner and your cluster would be
+ready for dockershim removal.
+-->
+建议从 dockershim 迁移到其他替代的容器运行时。
+请参阅[容器运行时](/zh/docs/setup/production-environment/container-runtimes/)
+一节以了解可用的备选项。
+当在迁移过程中遇到麻烦，请[上报问题](https://github.com/kubernetes/kubernetes/issues)。
+那么问题就可以及时修复，你的集群也可以进入移除 dockershim 前的就绪状态。