address blocking alerts

Author: angellan-msft

articles/communication-services/tutorials/add-chat-push-notifications.md

@@ -2,10 +2,10 @@
 title: Tutorial - Enable Push Notifications in your chat app
 titleSuffix: An Azure Communication Services tutorial
 description: Learn how to enable push notification in IOS App by using Azure Communication Chat SDK
-author: angellan-msft
+author: angellan
 services: azure-communication-services
 
-ms.author: angellan-msft
+ms.author: angellan
 ms.date: 08/04/2022
 ms.topic: tutorial
 ms.service: azure-communication-services
@@ -22,11 +22,11 @@ Push notifications alert clients of incoming messages in a chat thread in situat
 - `Basic Version` : The user will be able to see a badge number of 1 on the app’s icon, receive a notification sound and see a pop-up alert banner. 
 - `Advanced Version`: Except for the features supported in basic version, the Contoso will be able to customize the title & message preview section in alert banner. 
 
-    <img src="./media/add-chat-push-notification/basicVersion.png"  width="340" height="270">  
+    <img src="./media/add-chat-push-notification/basicVersion.png"  width="340" height="270" alt="This is basic version of push notification.">  
 
     [Basic Version]
 
-    <img src="./media/add-chat-push-notification/advancedVersion.png"  width="340" height="270"> 
+    <img src="./media/add-chat-push-notification/advancedVersion.png"  width="340" height="270" alt="This is advanced version of push notification."> 
 
     [Advanced Version]
 
@@ -37,10 +37,10 @@ Access the sample code for this tutorial on [GitHub](https://github.com/Azure-Sa
 
 ## Prerequisites
 
-1.Finish all the prerequisite steps in [Chat Quickstart](https://docs.microsoft.com/en-us/azure/communication-services/quickstarts/chat/get-started?pivots=programming-language-swift)
+1.Finish all the prerequisite steps in [Chat Quickstart](../quickstarts/chat/includes/chat-swift.md)
 
 2.ANH Setup  
-Create an Azure Notification Hub within the same subscription as your Communication Services resource and link the Notification Hub to your Communication Services resource. See [Notification Hub provisioning](https://docs.microsoft.com/en-us/azure/communication-services/concepts/notifications#notification-hub-provisioning)
+Create an Azure Notification Hub within the same subscription as your Communication Services resource and link the Notification Hub to your Communication Services resource. See [Notification Hub provisioning](../concepts/notifications#notification-hub-provisioning)
 
 3.APNS Cert Configuration  
 Here we recommend to create a .p12 APNS cert and set it in Notification Hub.  
@@ -50,52 +50,52 @@ Here we recommend to create a .p12 APNS cert and set it in Notification Hub.
 
 * Step 1: Log in to the Apple Developer Portal. Navigate to `Certificates, IDs & Profiles > Identifiers > App IDs` and click the App ID associated with your app.
 
-  <img src="./media/add-chat-push-notification/cert1.png"  width="700" height="230">  
+  <img src="./media/add-chat-push-notification/cert1.png"  width="700" height="230" alt="APNS Cert Configuration step 1.">  
 
 * Step 2: On the screen for your App ID, check  `Capabilities > Push Notifications`. Click Save and respond “Confirm” to the Modify App Capabilities dialog box that appears. 
 
-  <img src="./media/add-chat-push-notification/cert2.png"  width="700" height="350">  
+  <img src="./media/add-chat-push-notification/cert2.png"  width="700" height="350" alt="APNS Cert Configuration step 2.">  
 
-  <img src="./media/add-chat-push-notification/cert3.png"  width="700" height="210">  
+  <img src="./media/add-chat-push-notification/cert3.png"  width="700" height="210" alt="APNS Cert Configuration step 3.">  
 
 * Step 3: In the same page, click `Capabilities > Push Notifications > Configure`. Click one of the following buttons:   
    * Development SSL Certificate > Create Certificate (for testing push notifications while developing an iOS app)  
    * Production SSL Certificate > Create Certificate (for sending push notifications in production)    
 
-  <img src="./media/add-chat-push-notification/cert4.png"  width="700" height="320"> 
+  <img src="./media/add-chat-push-notification/cert4.png"  width="700" height="320" alt="APNS Cert Configuration step 3."> 
 
 * Step 4: Then you will be navigated to the below page. Here you will upload a Certificate Signing Request (CSR). Follow the next step to create a CSR.
 
-  <img src="./media/add-chat-push-notification/cert5.png"  width="700" height="400"> 
+  <img src="./media/add-chat-push-notification/cert5.png"  width="700" height="400" alt="APNS Cert Configuration step 4."> 
 
 * Step 5: In a new browser tab, follow this [help page](https://help.apple.com/developer-account/#/devbfa00fef7) to create a CSR and save the file as “App name.cer”.
 
-  <img src="./media/add-chat-push-notification/cert6.png"  width="700" height="360"> 
-  <img src="./media/add-chat-push-notification/cert7.png"  width="700" height="500"> 
+  <img src="./media/add-chat-push-notification/cert6.png"  width="700" height="360" alt="APNS Cert Configuration step 5 - 1."> 
+  <img src="./media/add-chat-push-notification/cert7.png"  width="700" height="500" alt="APNS Cert Configuration step 5 - 2."> 
 
 * Step 6: Drag the .cer file to “Choose File” area. Then hit “continue” on the right top corner. 
 
-  <img src="./media/add-chat-push-notification/cert8.png"  width="700" height="400"> 
+  <img src="./media/add-chat-push-notification/cert8.png"  width="700" height="400" alt="APNS Cert Configuration step 6."> 
 
 * Step 7: Click “Download” and save the file to local disk.
 
-  <img src="./media/add-chat-push-notification/cert9.png"  width="700" height="220"> 
+  <img src="./media/add-chat-push-notification/cert9.png"  width="700" height="220" alt="APNS Cert Configuration step 7."> 
 
 * Step 8: Open the .cer file you downloaded; it will open Keychain Access. Select your certificate, right-click, and export your certificate in .p12 format. 
 
-  <img src="./media/add-chat-push-notification/cert10.png"  width="700" height="330"> 
-  <img src="./media/add-chat-push-notification/cert11.png"  width="700" height="400"> 
+  <img src="./media/add-chat-push-notification/cert10.png"  width="700" height="330" alt="APNS Cert Configuration step 8 - 1."> 
+  <img src="./media/add-chat-push-notification/cert11.png"  width="700" height="400" alt="APNS Cert Configuration step 8 - 2."> 
 
 * Step 9: Go to your notification hub, click “Apple (APNS)” under Settings and select “Certificate” under Authentication Mode. Also select the Application Mode based on your need. Then upload the .p12 file you just created. 
 
-  <img src="./media/add-chat-push-notification/cert12.png"  width="700" height="360"> 
+  <img src="./media/add-chat-push-notification/cert12.png"  width="700" height="360" alt="APNS Cert Configuration step 9."> 
 
 4.XCode Configuration  
 * In XCode, go to  `Signing & Capabilities`. Add a capability by selecting "+ Capability", and then select “Push Notifications”.  
 
 * Add another capability by selecting “+ Capability”, and then select “Background Modes”. Also select “Remote Notifications” under Background Modes. 
 
-<img src="./media/add-chat-push-notification/XcodeConfig.png"  width="680" height="500">  
+<img src="./media/add-chat-push-notification/XcodeConfig.png"  width="680" height="500" alt="Enable Push Notifications and Background modes in Xcode.">  
 
 ## Implementation