Added hierarchy to how-to guides node

Author: ntrogh

articles/load-testing/toc.yml

@@ -28,42 +28,53 @@ items:
       href: concept-azure-load-testing-vnet-injection.md
 - name: How-to guides
   items:
-    - name: Create & manage tests
-      href: how-to-create-manage-test.md
-    - name: Create a load test with a JMeter script
-      href: how-to-create-and-run-load-test-with-JMeter-script.md 
-    - name: Compare test runs
-      href: how-to-compare-multiple-test-runs.md
-    - name: Configure server-side monitoring
-      href: how-to-monitor-server-side-metrics.md
-    - name: Configure for high scale loads
-      href: how-to-high-scale-load.md
-    - name: Troubleshoot with load test logs
-      href: how-to-find-download-logs.md
-    - name: Define test criteria
-      href: how-to-define-test-criteria.md
-    - name: Parameterize load tests
-      href: how-to-parameterize-load-tests.md
-    - name: Use JMeter user properties
-      href: how-to-configure-user-properties.md
-    - name: Read data from a CSV file
-      href: how-to-read-csv-data.md
-    - name: Get insights from App Service Diagnostics
-      href: how-to-appservice-insights.md
-    - name: Export test results
-      href: how-to-export-test-results.md
-    - name: Manage users and roles
-      href: how-to-assign-roles.md
-    - name: Use a managed identity
-      href: how-to-use-a-managed-identity.md
-    - name: Configure customer-managed keys
-      href: how-to-configure-customer-managed-keys.md
-    - name: Test a private endpoint
-      href: how-to-test-private-endpoint.md
-    - name: Move between regions
-      href: how-to-move-between-regions.md
-    - name: Monitor Azure Load Testing
-      href: monitor-load-testing.md
+    - name: Configure tests
+      items:
+        - name: Configure for high scale loads
+          href: how-to-high-scale-load.md
+        - name: Define test fail criteria
+          href: how-to-define-test-criteria.md
+        - name: Parameterize load tests
+          href: how-to-parameterize-load-tests.md
+        - name: Use JMeter user properties
+          href: how-to-configure-user-properties.md
+    - name: Run tests
+      items:
+        - name: Create a load test with a JMeter script
+          href: how-to-create-and-run-load-test-with-JMeter-script.md 
+        - name: Read data from a CSV file
+          href: how-to-read-csv-data.md
+        - name: Test a private endpoint
+          href: how-to-test-private-endpoint.md
+    - name: Analyze test results
+      items:
+        - name: Compare test runs
+          href: how-to-compare-multiple-test-runs.md
+        - name: Configure server-side monitoring
+          href: how-to-monitor-server-side-metrics.md
+        - name: Troubleshoot with load test logs
+          href: how-to-find-download-logs.md
+        - name: Get insights from App Service Diagnostics
+          href: how-to-appservice-insights.md
+        - name: Export test results
+          href: how-to-export-test-results.md
+    - name: Security
+      items:
+        - name: Manage users and roles
+          href: how-to-assign-roles.md
+        - name: Use a managed identity
+          href: how-to-use-a-managed-identity.md
+        - name: Configure customer-managed keys
+          href: how-to-configure-customer-managed-keys.md
+    - name: Manage resources
+      items:
+        - name: Create & manage tests
+          href: how-to-create-manage-test.md
+        - name: Move between regions
+          href: how-to-move-between-regions.md
+        - name: Monitor Azure Load Testing
+          href: monitor-load-testing.md
+
 - name: Reference
   items:
     - name: REST API