Update README.md

Author: jfree

README.md

@@ -5,7 +5,7 @@ This project contains demo applications for JavaFX that use the libraries create
 * [FXGraphics2D](https://github.com/jfree/fxgraphics2d) 
 * [Orson Charts FX](https://github.com/jfree/orson-charts-fx) 
 
-![Orson Charts sample](http://www.object-refinery.com/orsoncharts/images/orsoncharts_fx.png)
+<img width="1136" alt="Demo application screenshot" src="https://user-images.githubusercontent.com/1835893/150729627-30c72185-d171-4c46-b6dc-17f0d0d19e8a.png">
 
 To run the demo: