swap files

Author: asudbring

articles/nat-gateway/toc.yml

@@ -1,16 +1,20 @@
 items:
 - name: Azure NAT Gateway documentation
   href: index.yml
-- name: Overview
+- name: Get started
   items:
   - name: What is Azure NAT Gateway?
     href: nat-overview.md
-- name: Quickstarts
-  items:
   - name: Create and validate Azure NAT Gateway
     href: quickstart-create-nat-gateway.md
-- name: Tutorials
+  - name: Availability zones
+    href: nat-availability-zones.md
+  - name: NAT gateway resource
+    href: nat-gateway-resource.md
+- name: Deploy
   items:
+  - name: NAT gateway design guidance
+    href: nat-gateway-design.md
   - name: Use a NAT gateway with a hub and spoke network
     href: tutorial-hub-spoke-route-nat.md
   - name: Use a NAT gateway with Azure Firewall
@@ -23,39 +27,26 @@ items:
     href: tutorial-migrate-outbound-nat.md
   - name: Migrate a virtual machine public IP address
     href: tutorial-migrate-ilip-nat.md
-  expanded: true
-- name: Concepts
+- name: Secure
+  items:
+  - name: NAT gateway security baseline
+    href: /security/benchmark/azure/baselines/virtual-network-nat-security-baseline
+  - name: Network security blog
+    href: https://techcommunity.microsoft.com/category/azure-network-security/blog/azurenetworksecurityblog
+- name: Connectivity
   items:
-  - name: NAT gateway resource
-    href: nat-gateway-resource.md
-  - name: Availability zones
-    href: nat-availability-zones.md
-  - name: Security
-    items:
-    - name: NAT gateway security baseline
-      href: /security/benchmark/azure/baselines/virtual-network-nat-security-baseline
-    - name: Network security blog
-      href: https://techcommunity.microsoft.com/category/azure-network-security/blog/azurenetworksecurityblog
   - name: SNAT with NAT gateway
-    href: nat-gateway-snat.md
-  - name: NAT gateway design guidance
-    href: nat-gateway-design.md
-  - name: Metrics and alerts
-    href: nat-metrics.md
-- name: How-to
+    href: nat-gateway-snat.md 
+- name: Manage and monitor
   items:
-  - name: Monitor NAT gateway
-    href: monitor-nat-gateway.md
-  - name: Resource health
-    href: resource-health.md
   - name: Manage NAT gateway
     href: manage-nat-gateway.md
-  - name: Move across regions
-    items:
-    - name: Create and configure NAT gateway after region move
-      href: region-move-nat-gateway.md
-  - name: Troubleshoot
-    items:
+  - name: Create and configure NAT gateway after region move
+    href: region-move-nat-gateway.md
+  - name: Metrics and alerts
+    href: nat-metrics.md
+- name: Troubleshoot
+  items:
     - name: Troubleshoot NAT gateway
       href: troubleshoot-nat.md
     - name: Troubleshoot NAT gateway connectivity