Removed call by element id

Author: mendhak

example/index.html

@@ -40,7 +40,7 @@ <h1 id="step1">Angular Intro.js</h1>
         <p id="step4" class="lead">This example uses angular directives to invoke intro.js</p>
         <a class="btn btn-large btn-success" ng-click="CallMe();">Show me how</a>
         <a class="btn btn-large btn-success" ng-click="CallMe(3);">Start at step 3</a>
-        <a class="btn btn-large btn-success" ng-click="CallMe('#step3');">Start at element #step3</a>
+
     </div>
 
     <hr>