Update Quiz

Author: rcosta358

docs/index.html

@@ -62,6 +62,7 @@ <h1>LiquidJava Quiz</h1>
 </ul>
 </li>
 <li>
+<p>Liquid types can prevent which of the following bugs? <strong>(Select all that apply)</strong> </p>
 <ul class="checklist">
 <li><label><input type="checkbox" data-question="0" data-content="1" /> Array index out-of-bounds</label></li>
 <li><label><input type="checkbox" data-question="0" data-content="1" /> Null pointer exceptions</label></li>