Add thank you slide

ruby-girls.html

@@ -1030,6 +1030,19 @@ <h3>
           <p>(answers in assignments/logic_2.rb, but don't look!)</p>
         </div>
       </article>
+
+      <article id='thank-you'>
+        <style>
+          #thank-you .large-font { text-align: center; margin: 60px 0; }
+          #thank-you .thank-you { font-size: 50px; }
+        </style>
+        <h3>
+          Thank You!
+        </h3>
+        <p class='large-font'>A big thank you to the organizers and mentors for their effort and dedication.</p>
+        <p class='large-font'>Another big thank you to Ladies Learning Code for inspiring the content for this workshop.</p>
+        <p class='large-font thank-you' style='color:#006363'>The biggest thank you to all of you for spending the day learning to code!</p>
+      </article>
     </section>
 
   </body>