Update usage in README

Author: lrytz

README.md

@@ -1,21 +1,44 @@
 # Scala modules sbt plugin
-This is an sbt plugin for creating a scala module build.
 
+This is an sbt plugin for creating a scala module build.
 
-# Usage
+## Usage
 
-You must be using sbt 0.13 for your projects.  First create a `project/plugins.sbt` files:
+Add the plugin to the `project/plugins.sbt` file:
 
-    addSbtPlugin("org.scala-lang.modules" % "scala-module-plugin" % "1.0.0")
+```
+addSbtPlugin("org.scala-lang.modules" % "scala-module-plugin" % "1.0.6")
+```
 
 Then, in your `build.sbt` add:
 
-    scalaModuleSettings
-    
-    name := "<your module name>"
-    
-    version := "<your module version>"
-    
-    // standard stuff follows:
-    scalaVersion := "2.11.0-M8"
-    
+```
+scalaModuleSettings
+
+name         := "<module name>"
+repoName     := "<GitHub repo name>" // the repo under github.com/scala/, only required if different from name
+organization := "<org>"
+version      := "<module version>"
+
+// The plugin uses `scalaVersionsByJvm` to set `crossScalaVersions` according to the JVM major version.
+// The `scalaVersion` is set to `crossScalaVersions.value.head`.
+scalaVersionsByJvm := {
+  val v211 = "2.11.11"
+  val v212 = "2.12.2"
+  val v213 = "2.13.0-M1"
+
+  // Map[JvmMajorVersion, List[(ScalaVersion, UseForPublishing)]]
+  Map(
+    6 -> List(v211 -> true),
+    7 -> List(v211 -> false),
+    8 -> List(v212 -> true, v213 -> true, v211 -> false),
+    9 -> List(v212, v213, v211).map(_ -> false)
+  )
+}
+
+mimaPreviousVersion := Some("1.0.3") // enables MiMa (`None` by default, which disables it)
+
+OsgiKeys.exportPackage := Seq(s"<exported package>;version=${version.value}")
+
+// Other settings
+```