Update readme.md

extract documentation for gradle from readme.md and put it in the wiki

Author: André Behrens

readme.md

@@ -7,55 +7,8 @@ Please see the [Getting Started Guide](https://github.com/OfficeDev/ews-java-api
 ## Using the library
 Prebuilt JARs are available in the Maven Central repository, which are easy to use with your project. Note that currently, no stable version is available yet, only snapshots in the snapshots repository.
 
-### Maven
-If you want to use a snapshot build, add the Maven Central snapshots repository to your project's `pom.xml`. If you want to use a stable build (not available yet), you should skip this step.
-```xml
-<project>
-  <repositories>
-    <repository>
-      <id>sonatype-snapshots</id>
-      <name>Sonatype OSS Snapshots</name>
-      <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
-      <releases>
-        <enabled>false</enabled>
-      </releases>
-      <snapshots>
-        <enabled>true</enabled>
-      </snapshots>
-    </repository>
-  </repositories>
-</project>
-```
-
-And finally, add the dependency to your project's `pom.xml`.
-```xml
-<project>
-  <dependencies>
-    <dependency>
-      <groupId>com.microsoft.ews-java-api</groupId>
-      <artifactId>ews-java-api</artifactId>
-      <version>2.0-SNAPSHOT</version>
-    </dependency>
-  </dependencies>
-</project>
-```
-
-### Gradle
-If you want to use a snapshot build, add the Maven Central snapshots repository to your project's `build.gradle`. If you want to use a stable build (not available yet), you should skip this step.
-```groovy
-repositories {
-    maven {
-        url 'https://oss.sonatype.org/content/repositories/snapshots/'
-    }
-}
-```
-
-And finally, add the dependency to your project's `build.gradle`.
-```groovy
-dependencies {
-    compile 'com.microsoft.ews-java-api:ews-java-api:2.0-SNAPSHOT'
-}
-```
+### Maven / Gradle
+For Documentation on how to use _ews-java-api_ with maven or gradle please refer to [this section in our wiki](https://github.com/OfficeDev/ews-java-api/wiki#maven--gradle-integration). 
 
 ### Building from source
 To build a JAR from the source yourself, please see [this page](https://github.com/OfficeDev/ews-java-api/wiki/Building-EWS-JAVA-API).