docs(homepage): add extra note

Closes #5171

misc/demo/index.html

@@ -199,7 +199,7 @@ <h3>Reading the documentation</h3>
                             <li><i class="glyphicon glyphicon-eye-open"></i> - This setting has an angular $watch listener applied to it.</li>
                             <li><small class="badge">B</small> - This setting is a boolean. It doesn't need a parameter.</li>
                             <li><small class="badge">C</small> - This setting can be configured globally in a constant service*.</li>
-                            <li><small class="badge">$</small> - This setting expects an angular expression instead of a literal string. If the expression support a boolean, you can pass it directly.</li>
+                            <li><small class="badge">$</small> - This setting expects an angular expression instead of a literal string. If the expression support a boolean / integer, you can pass it directly.</li>
                             <li><small class="badge">readonly</small> - This setting is readonly.</li>
                         </ul>
                     </p>