Update calling-chat.md

Author: tomkau

articles/communication-services/concepts/interop/calling-chat.md

@@ -31,7 +31,7 @@ To initiate a call or chat with a Teams user, the user’s Azure Active Director
 ## Calling
 With ad hoc calling, an ACS user or endpoint can initiate a 1:1 call with a Teams, identified by the user’s Azure Active Directory (AAD) object ID. You can easily modify an existing application that calls other ACS users to instead call a Teams user.
 
-[Manage calls - An Azure Communication Services how-to guide | Microsoft Docs](../../how-tos/calling-sdk/manage-calls?pivots=platform-web)
+[Manage calls - An Azure Communication Services how-to guide | Microsoft Docs](../../how-tos/calling-sdk/manage-calls.md?pivots=platform-web)
 
 Calling another ACS user:
 ```js
@@ -52,7 +52,7 @@ const call = callAgent.startCall([teamsCallee]);
 ## Chat
 With ad hoc chat, Communication Services users or endpoints can initiate 1:n chat with Teams users, identified by the user’s Azure Active Directory (AAD) object ID. You can easily modify an existing application that creates chats with other ACS users, to instead create chats with Teams users:
 
-[Quickstart: Add Chat to your App](../../quickstarts/chat/get-started?pivots=programming-language-javascript)
+[Quickstart: Add Chat to your App](../../quickstarts/chat/get-started.md?pivots=programming-language-javascript)
 
 Creating a chat with a Teams user:
 ```js