Merge pull request #328 from adjust/uninstall-readme-update

Uninstall README update

Author: Chris Marshall

README.md

@@ -570,6 +570,8 @@ ADJAttribution *attribution = [Adjust attribution];
 
 ### <a id="push-token"></a>Push token
 
+Push tokens are used for Audience Builder and client callbacks, and they are required for uninstall and reinstall tracking.
+
 To send us the push notification token, add the following call to `Adjust` in the `didRegisterForRemoteNotificationsWithDeviceToken` of your app delegate:
 
 ```objc
@@ -578,8 +580,6 @@ To send us the push notification token, add the following call to `Adjust` in th
 }
 ```
 
-Push tokens are used for the Adjust Audience Builder and client callbacks, and are required for the upcoming uninstall tracking feature.
-
 ### <a id="pre-installed-trackers"></a>Pre-installed trackers
 
 If you want to use the Adjust SDK to recognize users that found your app pre-installed on their device, follow these steps.