Updated TOC to reflect new Retirement & Migration and moved according pages into the new section

Author: goergenj

articles/ai-services/speech-service/toc.yml

@@ -311,14 +311,10 @@ items:
           href: multi-device-conversation.md
         - name: Multi-device conversation quickstart
           href: quickstarts/multi-device-conversation.md
-    - name: Voice assistants
-      items:
-        - name: Voice assistants overview
-          href: voice-assistants.md
-        - name: Custom commands
-          href: custom-commands.md
-    - name: Speaker recognition
-      href: speaker-recognition-overview.md
+    # - name: Voice assistants
+    #   items:
+    #     - name: Voice assistants overview
+    #       href: voice-assistants.md
 - name: Infrastructure & security
   items:
     - name: Access control and authentication
@@ -416,23 +412,6 @@ items:
         displayName: encrypt, byos
       - name: How to back up and recover speech customization resources
         href: resiliency-and-recovery-plan.md
-    - name: Migration
-      items:
-        - name: Speech to text REST API migration
-          items:
-          - name: From Speech to text v3.2 to 2024-11-15
-            href: migrate-2024-11-15.md
-            displayName: migrate,migration,deprecate,retire,sunset
-          - name: From Speech to text v3.1 to v3.2
-            href: migrate-v3-1-to-v3-2.md
-            displayName: migrate,migration,deprecate,retire,sunset
-          - name: From Speech to text v3.0 to v3.1
-            href: migrate-v3-0-to-v3-1.md
-            displayName: migrate,migration,deprecate,retire,sunset
-        - name: From Long Audio API to Batch synthesis API
-          href: migrate-to-batch-synthesis.md
-        - name: Migrate to custom voice API
-          href: migrate-to-custom-voice-api.md
 - name: Speech CLI
   items:
     - name: Speech CLI overview
@@ -516,6 +495,32 @@ items:
           href: /rest/api/batchtexttospeech/operation-groups
         - name: Batch avatar REST API
           href: /rest/api/batchavatar/operation-groups
+- name: Retirement and Migration
+  items:
+  - name: Retiring Features
+    displayName: migrate,migration,deprecate,retire,sunset
+    items:
+      - name: Speaker recognition
+        href: speaker-recognition-overview.md
+        displayName: migrate,migration,deprecate,retire,sunset
+      - name: Custom commands
+        href: custom-commands.md
+        displayName: migrate,migration,deprecate,retire,sunset
+  - name: Speech to text REST API migration
+    items:
+    - name: From Speech to text v3.2 to 2024-11-15
+      href: migrate-2024-11-15.md
+      displayName: migrate,migration,deprecate,retire,sunset
+    - name: From Speech to text v3.1 to v3.2
+      href: migrate-v3-1-to-v3-2.md
+      displayName: migrate,migration,deprecate,retire,sunset
+    - name: From Speech to text v3.0 to v3.1
+      href: migrate-v3-0-to-v3-1.md
+      displayName: migrate,migration,deprecate,retire,sunset
+  - name: From Long Audio API to Batch synthesis API
+    href: migrate-to-batch-synthesis.md
+  - name: Migrate to custom voice API
+    href: migrate-to-custom-voice-api.md
 - name: Responsible AI
   items:
     - name: Speech to text