Add link to live demo in README

README.md

@@ -32,6 +32,12 @@ By default, the git clone command will only create the master branch locally. If
     git co -b 06_create_text_buttons origin/06_create_text_buttons
     git co -b 07_create_icon_buttons origin/07_create_icon_buttons
 
+## Live demo
+
+You can try out the demo here:
+
+* [http://sencha-tabs.heroku.com/][t]
+
 ## Deployment
 
 This code is deployed to Heroku as a static site, served by Rack. All files under the 'public' directory are served as static files (using [Rack::Static][] middleware). The [Rack::Rewrite][] middleware ensures that the index.html file is served for the root path: '/'. This is configured in the [config.ru][] file.
@@ -40,3 +46,4 @@ This code is deployed to Heroku as a static site, served by Rack. All files unde
 [Rack::Directory]: http://rack.rubyforge.org/doc/classes/Rack/Directory.html
 [Rack::Rewrite]: http://johntrupiano.rubyforge.org/rack-rewrite/
 [config.ru]: https://github.com/nelstrom/Sencha-Touch-tabs-and-toolbars-demo/blob/master/config.ru
+[t]: http://sencha-tabs.heroku.com/