Adding link to WinUI 3 camera sample

Author: drewbatgit

hub/apps/develop/camera/camera-quickstart-winui3.md

@@ -13,7 +13,7 @@ ms.localizationpriority: medium
 
 In this quickstart, you will learn how to create a basic WinUI 3 camera app that displays the camera preview. In a WinUI 3 app, you use the [MediaPlayerElement](/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.controls.mediaplayerelement) control in the [Microsot.UI.Xaml.Controls](/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.controls) namespace to render the camera preview and the WinRT class [MediaCapture](/uwp/api/windows.media.capture.mediacapture) to access the device's camera preview stream. **MediaCapture** provides APIs for performing a wide range of camera-related tasks such as such as capturing photos and videos and configuring the camera's device driver. See the other articles in this section for details about other **MediaCapture** features.
 
-The code in this walkthrough is adapted from [TBD - Sample repo link]. 
+The code in this walkthrough is adapted from the [MediaCapture WinUI 3 sample on github](https://github.com/microsoft/Windows-Camera/tree/master/Samples/MediaCaptureWinUI3). 
 
 
 ## Prerequisites

hub/apps/develop/camera/camera.md

@@ -37,6 +37,10 @@ This section provides guidance for creating WinUI 3 apps that use the camera or
 | [Handle the Windows camera privacy setting](camera-privacy-setting.md) | Learn how apps should handle the Windows camera privacy setting. |
 | [Connect to remote cameras](connect-to-remote-cameras.md) | Learn how to connect to remote cameras and get a **MediaFrameSourceGroup** to retrieve frames from each camera. |
 
+## WinUI 3 samples for camera
+
+* [MediaCapture WinUI 3 sample on github](https://github.com/microsoft/Windows-Camera/tree/master/Samples/MediaCaptureWinUI3).
+
 ## UWP app samples for camera
 
 * [Camera face detection sample](https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/CameraFaceDetection)