Update room-concept.md

Author: ddematheu2

articles/communication-services/concepts/rooms/room-concept.md

@@ -75,6 +75,8 @@ Rooms are created and managed via rooms APIs or SDKs. Use the rooms API/SDKs in
 
 Use the [Calling SDKs](../voice-video-calling/calling-sdk-features.md) to join the room call. Room calls can be joined using the Web, iOS or Android Calling SDKs. You can find quick start samples for joining room calls [here](../../quickstarts/rooms/join-rooms-call.md).
 
+Rooms can also be accessed using the [Azure Communication Services UI Library](https://azure.github.io/communication-ui-library/?path=/docs/rooms--page). The UI Library enables developers to add a call client that is Rooms enabled into their application with only a couple lines of code.
+
 ## Control access to room calls
 
 Rooms can be set to operate in two levels of control over who is allowed to join a room call. 
@@ -140,4 +142,4 @@ The tables below provide detailed capabilities mapped to the roles. At a high le
 ## Next steps:
 - Use the [QuickStart to create, manage and join a room](../../quickstarts/rooms/get-started-rooms.md).
 - Learn how to [join a room call](../../quickstarts/rooms/join-rooms-call.md).
-- Review the [Network requirements for media and signaling](../voice-video-calling/network-requirements.md).
+- Review the [Network requirements for media and signaling](../voice-video-calling/network-requirements.md).