Merge pull request #308 from adjust/referrer-added

SDK signature added

Author: uerceg

README.md

@@ -39,6 +39,7 @@ our [Android web views SDK guide](doc/english/web_views.md).
    * [Disable tracking](#disable-tracking)
    * [Offline mode](#offline-mode)
    * [Event buffering](#event-buffering)
+   * [SDK signature](#sdk-signature)
    * [Background tracking](#background-tracking)
    * [Device IDs](#device-ids)
       * [Google Play Services advertising identifier](#di-gps-adid)
@@ -679,6 +680,22 @@ config.setEventBufferingEnabled(true);
 Adjust.onCreate(config);
 ```
 
+### <a id="sdk-signature"></a>SDK signature
+
+An account manager must activate the Adjust SDK signature. Contact Adjust support ([email protected]) if you are interested in using this feature.
+
+If the SDK signature has already been enabled on your account and you have access to App Secrets in your Adjust Dashboard, please use the method below to integrate the SDK signature into your app.
+
+An App Secret is set by calling `setAppSecret` on your `AdjustConfig` instance:
+
+```java
+AdjustConfig config = new AdjustConfig(this, appToken, environment);
+
+config.setAppSecret(secretId, info1, info2, info3, info4);
+
+Adjust.onCreate(config);
+```
+
 ### <a id="background-tracking"></a>Background tracking
 
 The default behaviour of the Adjust SDK is to pause sending HTTP requests while the app is in the background. You can change this in your `AdjustConfig` instance: