Update toc.yml

Author: ddematheu2

articles/communication-services/toc.yml

@@ -737,6 +737,10 @@ items:
     - name: UI Library (JavaScript)
       href: /javascript/api/@azure/communication-react/
     - name: UI Library for Calling (iOS)
-      href: https://azure.github.io/azure-sdk-for-ios/AzureCommunicationUICalling/index.html
+      href: https://azure.github.io/azure-sdk-for-android/azure-communication-ui-calling/index.html
     - name: UI Library for Calling (Android)
-      href: https://azure.github.io/azure-sdk-for-android/azure-communication-mobileui/com/azure/android/communication/ui/calling/package-summary.html 
+      href: https://azure.github.io/azure-sdk-for-android/azure-communication-mobileui/com/azure/android/communication/ui/calling/package-summary.html
+    - name: UI Library for Chat (iOS)
+      href:https://azure.github.io/azure-sdk-for-ios/AzureCommunicationUIChat/
+    - name: UI Library for Chat (Android)
+      href: https://azure.github.io/azure-sdk-for-android/azure-communication-ui-chat/index.html