Mention the milestone release in README.md.

README.md

@@ -417,6 +417,35 @@ libraryDependencies += "org.reactfx" % "reactfx" % "1.4.1"
 [Download](https://github.com/TomasMikula/ReactFX/releases/download/v1.4.1/reactfx-1.4.1.jar) the JAR file and place it on your classpath.
 
 
+### Milestone release
+
+Current milestone release is 2.0-M2.
+
+#### Maven coordinates
+
+| Group ID    | Artifact ID | Version |
+| :---------: | :---------: | :-----: |
+| org.reactfx | reactfx     | 2.0-M2  |
+
+#### Gradle example
+
+```groovy
+dependencies {
+    compile group: 'org.reactfx', name: 'reactfx', version: '2.0-M2'
+}
+```
+
+#### Sbt example
+
+```scala
+libraryDependencies += "org.reactfx" % "reactfx" % "2.0-M2"
+```
+
+#### Manual download
+
+[Download](https://github.com/TomasMikula/ReactFX/releases/download/v2.0-M2/reactfx-2.0-M2.jar) the JAR file and place it on your classpath.
+
+
 ### Snapshot releases
 
 Snapshot releases are deployed to Sonatype snapshot repository.