Minor Fix

Author: rcosta358

docs/index.html

@@ -81,9 +81,9 @@ <h1>LiquidJava Quiz</h1>
 </li>
 <li>
 <p>In LiquidJava, it's possible to refine method parameters and return values.</p>
-<ul class="checklist">
-<li><label><input type="checkbox" data-question="0" data-content="1" /> True</label></li>
-<li><label><input type="checkbox" data-question="1" data-content="0" /> False</label></li>
+<ul class="radio-list">
+<li><label><input type="radio" data-question="0" data-content="1" /> True</label></li>
+<li><label><input type="radio" data-question="1" data-content="0" /> False</label></li>
 </ul>
 </li>
 <li>