Update README.md

README.md

@@ -2,3 +2,46 @@ sbt-groovy
 ==========
 
 an sbt plugin for groovy
+
+## Requirements
+
+* [SBT 0.13+](http://www.scala-sbt.org/)
+
+
+## Quick start
+
+Add plugin to *project/plugins.sbt*:
+
+```scala
+
+resolvers += "Sonatype Repository" at "https://oss.sonatype.org/content/groups/public"
+
+addSbtPlugin("com.ebiznext.sbt.plugins" % "sbt-groovy" % "0.1.1")
+```
+
+For *.sbt* build definitions, inject the plugin settings in *build.sbt*:
+
+```scala
+seq(groovy.settings :_*)
+
+seq(testGroovy.settings :_*)
+```
+
+For *.scala* build definitions, inject the plugin settings in *Build.scala*:
+
+```scala
+Project(..., settings = Project.defaultSettings ++ com.ebiznext.sbt.plugins.GroovyPlugin.groovy.settings ++ com.ebiznext.sbt.plugins.GroovyPlugin.testGroovy.settings)
+```
+
+## Configuration
+
+Plugin keys are located in `com.ebiznext.sbt.plugins.Keys`
+
+### Groovy sources
+
+```scala
+groovySource in Compile := (sourceDirectory in Compile).value / "groovy"
+
+groovySource in Test := (sourceDirectory in Test).value / "groovy"
+```
+