Add new file

readme.md

+This gradle plugin can be used to generate model code from an ecore `*.genmodel`.
+
+# Installation
+
+The plugin can be used via `apply plugin: 'ecore2java'` or with the [Plugins DSL](https://docs.gradle.org/current/userguide/plugins.html#sec:plugins_block) (see below).
+
+For this you need to add the repository in your `build.gradle` file:
+
+```groovy
+buildscript {
+    repositories {
+        // ...
+        ivy { setUrl 'https://git-st.inf.tu-dresden.de/afehn/ecore2java-gradle/raw/ivy-repo' }
+    }
+    // ...
+}
+```
+
+## Plugins DSL
+
+Add a new repository in your `settings.gradle` file:
+
+```groovy
+pluginManagement {
+    // ...
+    repositories {
+        // Important! This allows you to use the default plugins.
+        gradlePluginPortal()
+        ivy { setUrl 'https://git-st.inf.tu-dresden.de/afehn/ecore2java-gradle/raw/ivy-repo' }
+    }
+    // ...
+}
+```
+
+Now you can apply the plugin in your `build.gradle` file:
+
+```groovy
+plugins {
+    // ...
+    id 'ecore2java' version '<version>'
+    // ...
+}
+```
+
+
+
+# Usage
+
+Execute the model generation in your `build.gradle` file:
+
+```groovy
+ecore2java {
+    // Defaults to '$buildDir/generated-src/ecore/java'
+    outputDir = 'src-gen'
+    genModel 'models/model.genmodel'
+}
+```