add android setup to readme

README.md

@@ -20,3 +20,59 @@ randomBytes(4, (err, bytes) => {
 * Click on the project in XCode, go to Build Phases, then Link Binary With Libraries and add `libRNRandomBytes.a`
 
 Confused? See an example with screenshots [here](http://facebook.github.io/react-native/docs/linking-libraries-ios.html#content)
+
+
+### `Android`
+
+* Update Gradle Settings
+
+```gradle
+// file: android/settings.gradle
+...
+
+include ':randombytes', ':app'
+project(':randombytes').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-randombytes/app')
+```
+
+* Update Gradle Build
+
+```gradle
+// file: android/app/build.gradle
+...
+
+dependencies {
+    ...
+    compile project(':randombytes')
+}
+```
+
+* Register React Package
+
+```java
+...
+import com.bitgo.randombytes.RandomBytesPackage // import
+
+public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {
+
+    private ReactInstanceManager mReactInstanceManager;
+    private ReactRootView mReactRootView;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mReactRootView = new ReactRootView(this);
+        mReactInstanceManager = ReactInstanceManager.builder()
+                .setApplication(getApplication())
+                .setBundleAssetName("index.android.bundle")
+                .setJSMainModuleName("index.android")
+                .addPackage(new MainReactPackage())
+                .addPackage(new RandomBytesPackage()) // register react iconify package here
+                .setUseDeveloperSupport(BuildConfig.DEBUG)
+                .setInitialLifecycleState(LifecycleState.RESUMED)
+                .build();
+        mReactRootView.startReactApplication(mReactInstanceManager, "AwesomeProject", null);
+        setContentView(mReactRootView);
+    }
+...
+
+```