docs: optimize

Author: wardseptember

README.md

@@ -3,7 +3,7 @@ English | [中文](README.zh_CN.md)
 # tRPC-Java Framework
 
 [![LICENSE](https://img.shields.io/badge/license-Apache--2.0-green.svg)](https://github.com/trpc-group/trpc-java/blob/master/LICENSE)
-[![Releases](https://img.shields.io/github/release/trpc.group/trpc-java.svg?style=flat-square)](https://github.com/trpc-group/trpc-java/releases)
+[![Releases](https://img.shields.io/github/v/release/trpc-group/trpc-java.svg?style=flat-square)](https://github.com/trpc-group/trpc-java/releases)
 [![Docs](https://img.shields.io/badge/docs-latest-green)](https://github.com/trpc-group/trpc-java/tree/master/docs/)
 [![Coverage](https://codecov.io/gh/trpc-group/trpc-java/graph/badge.svg?token=PCzWvpNAIk)](https://codecov.io/gh/trpc-group/trpc-java)
 
@@ -34,6 +34,8 @@ tRPC-Java has the following features:
 
 JDK 1.8.0_251+, Maven 3.6.3+
 
+> Please compile tRPC-Java through `mvn -Dmaven.test.skip=true clean install`. If you want to run unit tests, you need to use JDK 8.
+
 ### Import dependencies
 
 ```pom

README.zh_CN.md

@@ -3,7 +3,7 @@
 # tRPC-Java Framework
 
 [![LICENSE](https://img.shields.io/badge/license-Apache--2.0-green.svg)](https://github.com/trpc-group/trpc-java/blob/master/LICENSE)
-[![Releases](https://img.shields.io/github/release/trpc.group/trpc-java.svg?style=flat-square)](https://github.com/trpc-group/trpc-java/releases)
+[![Releases](https://img.shields.io/github/v/release/trpc-group/trpc-java.svg?style=flat-square)](https://github.com/trpc-group/trpc-java/releases)
 [![Docs](https://img.shields.io/badge/docs-latest-green)](https://github.com/trpc-group/trpc-java/tree/master/docs/)
 [![Coverage](https://codecov.io/gh/trpc-group/trpc-java/graph/badge.svg?token=PCzWvpNAIk)](https://codecov.io/gh/trpc-group/trpc-java)
 
@@ -33,6 +33,8 @@ tRPC-Java 具有以下特点：
 
 JDK 1.8.0_251+, Maven 3.6.3+
 
+> 请通过 `mvn -Dmaven.test.skip=true clean install` 编译tRPC-Java。如果运行单元测试需使用JDK 8执行。
+
 ### 引入依赖
 
 ```pom

docs/en/1.quick_start.md

@@ -40,6 +40,8 @@ To install `tRPC-Java` and its dependencies locally, execute the following comma
 $ mvn -Dmaven.test.skip=true clean install
 ```
 
+> Please compile tRPC-Java through `mvn -Dmaven.test.skip=true clean install`. If you want to run unit tests, you need to use JDK 8.
+
 #### Run the Server-Side Example Codes
 
 To run the server-side example codes, you can execute the following command:

docs/zh/1.quick_start.md

@@ -38,6 +38,8 @@ trpc-demo
 $ mvn -Dmaven.test.skip=true clean install
 ```
 
+> 请通过 `mvn -Dmaven.test.skip=true clean install` 编译tRPC-Java。如果运行单元测试需使用JDK 8执行。
+
 #### 运行服务端示例代码
 
 执行以下命令运行服务端示例代码：

trpc-demo/pom.xml

@@ -17,6 +17,7 @@
 
     <properties>
         <skip_maven_deploy>true</skip_maven_deploy>
+        <trpc-maven-plugin.version>1.0.0</trpc-maven-plugin.version>
     </properties>
     <modules>
         <module>trpc-java-demo</module>

trpc-demo/trpc-java-demo/pom.xml

@@ -60,7 +60,7 @@
             <plugin>
                 <groupId>com.tencent.trpc</groupId>
                 <artifactId>trpc-maven-plugin</artifactId>
-                <version>${project.version}</version>
+                <version>${trpc-maven-plugin.version}</version>
                 <executions>
                     <execution>
                         <goals>

trpc-demo/trpc-spring-demo/trpc-spring-client-demo/pom.xml

@@ -23,7 +23,7 @@
             <plugin>
                 <groupId>com.tencent.trpc</groupId>
                 <artifactId>trpc-maven-plugin</artifactId>
-                <version>${project.version}</version>
+                <version>${trpc-maven-plugin.version}</version>
                 <executions>
                     <execution>
                         <goals>

trpc-demo/trpc-spring-demo/trpc-spring-server-demo/pom.xml

@@ -23,7 +23,7 @@
             <plugin>
                 <groupId>com.tencent.trpc</groupId>
                 <artifactId>trpc-maven-plugin</artifactId>
-                <version>${project.version}</version>
+                <version>${trpc-maven-plugin.version}</version>
                 <executions>
                     <execution>
                         <goals>