Added slide URL to front slide:

Author: PendragonDevelopment

public/index.html

@@ -38,6 +38,7 @@
       <div class="slides">
         <section>
           <h2>Prep for the class:</h2>
+          <h3>Access these slides: <a href="https://murmuring-escarpment-41318.herokuapp.com/#/">https://murmuring-escarpment-41318.herokuapp.com/#/</a></h3>
           <h3><a href="http://docs.railsbridge.org/installfest/">http://docs.railsbridge.org/installfest/</a></h3>
           <h3>Follow the instructions through installing Ruby 2.2.4 and Git</h3>
         </section>