Update README.md

README.md

@@ -5,6 +5,7 @@ A simple sample using the Windows.Graphics.Capture APIs in a Win32 application.
 Here are some places you should look at in the code to learn the following:
 
 * Capture a window given its window handle. [`App::StartCapture(HWND)`](https://github.com/robmikh/Win32CaptureSample/blob/master/Win32CaptureSample/App.cpp)
+* Capture a monitor given its monitor handle. [`App::StartCapture(HMONITOR)`](https://github.com/robmikh/Win32CaptureSample/blob/master/Win32CaptureSample/App.cpp)
 * Show the system provided picker and capture the selected window/monitor. [`App::StartCaptureWithPickerAsync()`](https://github.com/robmikh/Win32CaptureSample/blob/master/Win32CaptureSample/App.cpp)
 * Setting up the Windows.Graphics.Capture API. [`SimpleCapture::SimpleCapture()`](https://github.com/robmikh/Win32CaptureSample/blob/master/Win32CaptureSample/SimpleCapture.cpp)
 * Processing frames received from the frame pool. [`SimpleCapture::OnFrameArrived(Direct3D11CaptureFramePool, IInspectable)`](https://github.com/robmikh/Win32CaptureSample/blob/master/Win32CaptureSample/SimpleCapture.cpp)