added link to live demo

Author: gdkraus

README.md

@@ -6,7 +6,7 @@ This page demonstrates how to make a modal window as accessible as possible to a
 
 * Due to high demand, the role="document" is added back to the contents of the modal. This makes it so NVDA automatically switches into document reading mode inside of the modal. NVDA had previously let you toggle the reading mode, but since many modals contain items that require document browsing mode, I've added this back in as the default.
 * There is now a check that when the modal window is open, detects any time the #mainPage or any of its contents receives focus and will redirect the focus to the modal window. This was necessary because of the modal window was open and you went to the address bar, if you started tabbing again you would interact with the main page.
-* Both the documentation and the live demo now live on GitHub.
+* Both the documentation and the [live demo](http://gdkraus.github.io/accessible-modal-dialog/) now live on GitHub.
 
 ##Features