doc: fix incorrect code examples for universal / deep linking

ios/README.md

 
 #### Universal / deep linking
 
-In order to support Universal / deep linking, `JitsiMeetView` offers 2 class
+In order to support Universal / deep linking, `JitsiMeet` offers 2 class
 methods that you app's delegate should call in order for the app to follow those
 links.
 
 continueUserActivity:(NSUserActivity *)userActivity
   restorationHandler:(void (^)(NSArray *restorableObjects))restorationHandler
 {
-  return [JitsiMeetView application:application
+  return [[JitsiMeet sharedInstance] application:application
                continueUserActivity:userActivity
                  restorationHandler:restorationHandler];
 }
 - (BOOL)application:(UIApplication *)app
             openURL:(NSURL *)url
             options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options {
-  return [JitsiMeetView application:app
+  return [[JitsiMeet sharedInstance] application:app
                             openURL:url
                             options: options];
 }