Adding dev instructions

README.md

@@ -4,4 +4,15 @@ Vote on [`Kickstarter`](https://www.kickstarter.com/projects/1453417775/plugins-
 
 > Integration for Web, Eclipse and IDEA development environement for the [GalenFramework](http://galenframework.com)
 
-[![Build Status](https://travis-ci.org/hypery2k/galen_ide.svg?branch=master)](https://travis-ci.org/hypery2k/galen_ide) 
+[![Build Status](https://travis-ci.org/hypery2k/galen_ide.svg?branch=master)](https://travis-ci.org/hypery2k/galen_ide)
+
+## Dev instructions
+
+For local setup use [Xtext 2.9.0beta5](https://www.eclipse.org/modeling/tmf/downloads/?showAll=1&hlbuild=S201510020259&project=xtext#S201510020259) or above and clone this repository.
+
+Then in the repository run:
+
+```bash
+cd com.galenframework.parent
+mvn install eclipse:eclipse
+```