Minor updates to Doctests.

lib/card/index.html

@@ -76,6 +76,8 @@
 
     <script class="doctest">
 
+        Doctest.expect(ITapDelegate.implementedBy(CardWrapper), true)
+
         const wrapper1 = new CardWrapper(demoCardWithOnClick)
         wrapper1.handleClicksAsTaps()
 
@@ -92,8 +94,8 @@
     <h2>
         Using Cards within Scatters
     </h2>
-    <p>Cards can be used within scatters. Since the CardWrapper implements the TapDelegate protocol they can simply
-        be attached to a DOMScatter object.
+    <p>Cards can be used within scatters. Since the <code>CardWrapper</code> implements the <code>ITapDelegate</code> protocol they can simply
+        be attached to a DOMScatter object. See the <a href="../scatter.html">Scatter Doctest</a>.
     </p>
     <div class="interactive grayBorder" style="position: relative;">
     </div>