Update iOS AppDelegate setup instructions for React Native integration

Author: subhankarmaiti

articles/quickstart/native/react-native/00-login.md

@@ -86,24 +86,11 @@ At runtime, the `applicationId` value will automatically update with your applic
 ### Configure iOS
 #### AppDelegate Setup (Choose Based on Architecture)
 
-If You're Using (Swift - `ios/<YOUR PROJECT>/AppDelegat.swift`) update the following:
+If You're Using (Swift - `ios/<YOUR PROJECT>/AppDelegat.swift`) add the following in `AppDelegate` class:
 
 ```swift
-
-class AppDelegate: RCTAppDelegate {
-  // ... your existing code ...
-  // update bundleURL method -> add return
-  override func bundleURL() -> URL? {
-    #if DEBUG
-      return RCTBundleURLProvider.sharedSettings().jsBundleURL(forBundleRoot: "index")
-    #else
-      return Bundle.main.url(forResource: "main", withExtension: "jsbundle")
-    #endif
-  }
-  // add the below method
-  override func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
-    return Auth0.resumeAuth(url, options: options)
-  }
+func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
+  return RCTLinkingManager.application(app, open: url, options: options)
 }
 ```
 If You're Using (Objective-C++ - `ios/<YOUR PROJECT>/AppDelegate.mm`) add the following: