Update toc.yml

fix link for amd article

Author: valindrae

articles/communication-services/toc.yml

@@ -994,7 +994,7 @@ items:
     - name: Gather user input with recognize action
       href: how-tos/call-automation/recognize-action.md
     - name: Implement Answer Machine Detection
-      href: how-tos/call-automation/answer-machine-detection.md
+      href: concepts/call-automation/answer-machine-detection.md
   - name: Call recording
     items:
     - name: Call recording overview