update comments

v-yilinhu · v-yilinhu · commit 0f3407c61946 · 2022-04-27T10:52:14.000+08:00
diff --git a/includes/notification-hubs-aspnet-backend-notifyusers.md b/includes/notification-hubs-aspnet-backend-notifyusers.md
@@ -194,9 +194,7 @@ In this section, you add a new controller to the WebAPI backend to handle reques
 
 9. In the **Controller name** box, type **RegisterController** to name the new class, and then select **Add**.
 
-    [ ![The Add Controller window](/media/notification-hubs-aspnet-backend-notifyusers/notification-hubs-secure-push8.png)](/media/notification-hubs-aspnet-backend-notifyusers/notification-hubs-secure-push8.png#lightbox)
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+    :::image type="content" source="media/notification-hubs-aspnet-backend-notifyusers/notification-hubs-secure-push8.png" alt-text="The Add Controller window." lightbox="media/notification-hubs-aspnet-backend-notifyusers/notification-hubs-secure-push8.png":::
 
 10. In RegisterController.cs, add the following `using` statements:
 
