Update README_zh.md

Translation README_zh.md.

README_zh.md

 <img src="img/Sping_Logo.jpg" width="50%" height="50%" />
 
-# Spring official reference
+# Spring官方文档
+
+### [英文文档](README.md)
 
-> Spring官方文档（中文版）
 #### 编译的Spring官方文档中文译本，为Spring生态体系下的学习者降低学习门槛，您在使用文档的过程中如发现不准确的译文，可即时提供翻译建议。
 
 ## Spring官方项目
@@ -10,23 +11,16 @@
 ### Spring Boot
 [![Build Status](https://ci.spring.io/api/v1/teams/spring-boot/pipelines/spring-boot/jobs/build/badge)](https://ci.spring.io/teams/spring-boot/pipelines/spring-boot?groups=Build")   [![Chat](https://badges.gitter.im/JoinChat.svg)](https://gitter.im/spring-projects/spring-boot?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge")
 
-Spring Boot makes it easy to create Spring-powered, production-grade applications and
-services with absolute minimum fuss. It takes an opinionated view of the Spring platform
-so that new and existing users can quickly get to the bits they need.
+Spring Boot可以轻松创建Spring驱动的生产级应用程序和服务，并且可以轻松实现。它采用了Spring平台的观点，以便新用户和现有用户可以快速获得他们的需要。
 
-You can use Spring Boot to create stand-alone Java applications that can be started using
-`java -jar` or more traditional WAR deployments. We also provide a command line tool
-that runs spring scripts.
+您可以使用Spring Boot创建可以使用java -jar或更多传统WAR部署启动的独立Java应用程序 。我们还提供了一个运行spring脚本的命令行工具。
 
-Our primary goals are:
+我们的主要目标：
 
-* Provide a radically faster and widely accessible getting started experience for all
-Spring development
-* Be opinionated out of the box, but get out of the way quickly as requirements start to
-diverge from the defaults
-* Provide a range of non-functional features that are common to large classes of projects
-(e.g. embedded servers, security, metrics, health checks, externalized configuration)
-* Absolutely no code generation and no requirement for XML configuration
+* 为所有Spring开发从根本上提供更快且可广泛访问的入门体验。
+* 开箱即用，但随着需求开始变化而迅速摆脱困境。
+* 提供大类项目通用的一系列非功能性功能（例如：嵌入式服务器，安全性，指标，运行状况检查，外部化配置）。
+* 绝对没有代码生成，也不需要XML配置。
 
 * [站点](https://spring.io/projects/spring-boot) | [GIT](https://github.com/spring-projects/spring-boot)
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