nat gateway landing page update

Author: aimee-littleton

articles/virtual-network/nat-gateway/index.yml

@@ -30,15 +30,23 @@ landingContent:
         links:
           - text: Designing virtual networks with NAT gateway resources
             url: nat-gateway-resource.md
+          - text: NAT gateway metrics and alerts
+            url: nat-metrics.md
+          - text: NAT gateway resource health
+            url: resource-health.md
       - linkListType: learn
         links:
           - text: Introduction to Azure Virtual Network NAT
             url: /learn/modules/intro-to-azure-virtual-network-nat
+      - linkListType: video
+        links:
+          - text: How to get better outbound connectivity using Azure NAT Gateway
+            url: https://www.youtube.com/watch?v=2Ng_uM0ZaB4   
 
   # Card (optional)
   - title: Get started
     linkLists:
-      - linkListType: tutorial
+      - linkListType: quickstart
         links:
           - text: Create and validate NAT gateway
             url: quickstart-create-nat-gateway-portal.md    
@@ -48,7 +56,38 @@ landingContent:
             url: tutorial-nat-gateway-load-balancer-public-portal.md
           - text: Integrate NAT gateway with a internal load balancer
             url: tutorial-nat-gateway-load-balancer-internal-portal.md
-      - linkListType: video
+            
+  # Card (optional)
+  - title: Connect Outbound
+    linkLists:
+      - linkListType: Tutorial 
         links:
-          - text: How to get better outbound connectivity using Azure NAT Gateway
-            url: https://www.youtube.com/watch?v=2Ng_uM0ZaB4
+         - text: Migrate outbound access to NAT gateway
+            url: tutorial-migrate-outbound-nat.md
+          - text: Migrate a VM public IP to NAT gateway
+            url: tutorial-migrate-ilip-nat.md
+
+  # Card (optional)
+  - title: Troubleshoot
+    linkLists:
+      - linkListType: how-to-guide
+        links:
+          - text: Troubleshoot NAT gateway
+            url: troubleshoot-nat.md
+
+  # Card (optional)
+  - title: Reference
+    linkLists:
+      - linkListType: reference
+        links:
+          - text: Frequently asked questions about NAT gateway
+            url: faq.yml
+          - text: Azure Powershell
+            url: /powershell/module/az.network/#networking
+          - text: Azure CLI
+            url: /cli/azure/network/nat/gateway
+          - text: ARM templates
+            url: /azure/templates/microsoft.network/natgateways
+          - text: Rest
+            url: rest/api/virtualnetwork/nat-gateways
+