Update toc.yml

Author: tomaschladek

articles/communication-services/toc.yml

@@ -247,7 +247,7 @@ items:
       - name: Communication as Teams guest
         items:        
           - name: Overview
-            href: concepts/join-teams-meeting.md
+            href: concepts/interop/guest/overview.md
           - name: Capabilities
             href: concepts/interop/guest/capabilities.md
           - name: Teams client experience
@@ -279,13 +279,17 @@ items:
   - name: Azure Government
     href: concepts/government.md
   - name: Pricing
-    href: concepts/pricing.md
-  - name: Email Pricing
-    href: concepts/email-pricing.md
-  - name: SMS Pricing
-    href: concepts/sms-pricing.md
-  - name: PSTN Pricing
-    href: concepts/pstn-pricing.md
+    items:
+      - name: Pricing overview
+        href: concepts/pricing.md
+      - name: Email Pricing
+        href: concepts/email-pricing.md
+      - name: SMS Pricing
+        href: concepts/sms-pricing.md
+      - name: PSTN Pricing
+        href: concepts/pstn-pricing.md
+      - name: Teams interoperability Pricing
+        href: concepts/pricing/teams-interop-pricing.md        
   - name: Push notifications
     href: concepts/notifications.md
   - name: Azure Advisor