Add Colored Dots tutorial (multuple screens)

appinventor/docs/learn/tutorials/index.html

@@ -298,6 +298,7 @@
          <div class="clear">
          </div>
         </li>
+
         <li>
          <div class="text">
           <a class="title" href="molemash2/molemash2.html">
@@ -309,6 +310,19 @@
                     to layer Sprites.
          </div>
         </li>
+
+        <li>
+         <div class="text">
+          <a class="title" href="coloredDots/coloredDots.html">
+           Colored Dots
+          </a>
+          <br />
+          Colored Dots is a simple painting program that uses a second
+	   screen to select the paint colors.  This tutorial serves as
+	   an introduction to creating apps that have multiple screens.
+         </div>
+        </li>
+
        </ul>
       </div>
      </div>