More version tests (#17)

* change group id for mvn central repository deploy

* add project name etc and release config

* add more version tests for nacos server

* add usage desc

* fix nacos release version

README.md

@@ -4,3 +4,40 @@
 [![codecov](https://codecov.io/gh/jervyshi/nacos-embedded/branch/master/graph/badge.svg)](https://codecov.io/gh/jervyshi/nacos-embedded)
 
 Nacos-embedded provides easy way to run Nacos in integration tests. Inspired by [embedded-consul](https://github.com/pszymczyk/embedded-consul).
+
+Compatible with jdk1.8+. 
+Working on all operating systems: Mac, Linux, Windows.
+
+## How to get it?
+
+```xml
+<dependency>
+    <groupId>name.jervyshi</groupId>
+    <artifactId>nacos-embedded</artifactId>
+    <version>0.2.0</version>
+    <scope>test</scope>
+</dependency>
+```
+
+## Usage
+
+### Manual
+
+```java
+public class IntegrationTest {
+
+    private NacosProcess nacosProcess;
+
+    @Before
+    public void setup() {
+        nacosProcess = NacosStarterBuilder.nacosStarter().build().start();
+    }
+
+    @After
+    public void cleanup() throws Exception {
+        nacosProcess.close();
+    }
+
+    /* tests with nacos client */
+}
+```

src/test/java/name/jervyshi/nacos/NacosStarterTest.java

@@ -40,7 +40,8 @@ public class NacosStarterTest {
 
     @Parameters
     public static Collection<Object[]> data() {
-        return Arrays.asList(new Object[][] { { "0.8.0" }, { "latest" } });
+        return Arrays
+            .asList(new Object[][] { { "0.8.0" }, { "0.9.0" }, { "1.0.0-RC2" }, { "latest" } });
     }
 
     @Parameter