Update toc.yml

Author: krkutser

articles/communication-services/toc.yml

@@ -1050,6 +1050,8 @@ items:
       href: concepts/numbers/phone-number-management-for-taiwan.md
     - name: Phone number management for Thailand
       href: concepts/numbers/phone-number-management-for-thailand.md
+    - name: Phone number management for United Arab Emirates
+      href: concepts/numbers/phone-number-management-for-united-arab-emirates.md
     - name: Phone number management for United Kingdom
       href: concepts/numbers/phone-number-management-for-united-kingdom.md
     - name: Phone number management for United States