Update README.md

README.md

@@ -16,7 +16,7 @@ You have been invited to craft the centerpiece of the American thanksgiving dinn
 * Masterfully crafted scenes of an American household!
 
 ## Compatibility
-* [Firefox 25](http://www.mozilla.org/en-US/firefox/new/) - Recommended browser, Gstreamer required for sound on Mac
+* [Firefox 25](http://www.mozilla.org/en-US/firefox/new/) - Recommended browser, [GStreamer] (http://gstreamer.freedesktop.org/) required for sound on Mac
 * [Chrome 22](https://www.google.com/intl/en/chrome/) - Full compatibility, recommended browser.
 * [Safari 6.0.5](http://www.apple.com/safari/) - Full compatibility, recommended browser.
 * [Internet Explorer 11](http://windows.microsoft.com/en-us/internet-explorer/download-ie) - Not recommended. Sound looping issues