zh-translation:/docs/setup/platform-setup/docker/index.md (#5373)

* Add platform setup for docker desktop guide in Chinese.

* Fix Docker Desktop to English

* modify the description words for easy reading

content/zh/docs/setup/platform-setup/docker/index.md

@@ -1,6 +1,6 @@
 ---
 title: Docker Desktop
-description: Instructions to setup Docker Desktop for Istio.
+description: 在 Docker Desktop 中运行 Istio 的设置说明。
 weight: 12
 skip_seealso: true
 aliases:
@@ -10,25 +10,24 @@ aliases:
 keywords: [platform-setup,kubernetes,docker-desktop]
 ---
 
-1. To run Istio with Docker Desktop, install a version which contains a supported Kubernetes version
-    ({{< supported_kubernetes_versions >}}).
+1. 如果你想在 Docker Desktop 下运行 Istio，则需要安装受支持的 Kubernetes 版本
+    ({{< supported_kubernetes_versions >}})。
 
-1. If you want to run Istio under Docker Desktop's built-in Kubernetes, you need to increase Docker's memory limit
-    under the *Advanced* pane of Docker Desktop's preferences. Set the resources to 8.0 `GB` of memory and 4 `CPUs`.
+1. 如果你想在 Docker Desktop 内置的 Kubernetes 下运行Istio，你可能需要在 Docker 首选项的 Advanced 面板下增加 Docker 的内存限制。设置可用的内存资源为 8.0 `GB` 以及 4 核心 `CPUs`.
 
     {{< image width="60%" link="./dockerprefs.png"  caption="Docker Preferences"  >}}
 
     {{< warning >}}
-    Minimum memory requirements vary.  8 `GB` is sufficent to run
-    Istio and Bookinfo.  If you don't have enough memory allocated in Docker Desktop,
-    the following errors could occur:
+    最低内存的要求不尽相同。8 `GB` 足以运行
+    Istio 和 Bookinfo 实例。如果你没有足够的内存用于 Docker Desktop，
+    则可能发生以下错误：
 
-    - image pull failures
-    - healthcheck timeout failures
-    - kubectl failures on the host
-    - general network instability of the hypervisor
+    - 镜像拉取失败
+    - 健康检查超时失败
+    - 宿主上 kubectl 运行失败
+    - 虚拟机管理程序的网络不稳定
 
-    Additional Docker Desktop resources may be freed up using:
+    为 Docker Desktop 释放出更多可用资源：
 
     {{< text bash >}}
     $ docker system prune