title: Increment $index in ng-repeat
body: <p>How should the $index in <code>ng-repeat</code> be incremented by a specific value?
  For instance in this fiddle <a href="http://jsfiddle.net/Lvc0u55v/11811/" rel="nofollow noreferrer">http://jsfiddle.net/Lvc0u55v/11811/</a> the value needs to be displayed two at a time. So the next iteration should start with third value instead of second value.</p>
  
  <pre><code>&lt;div ng-controller="MyCtrl"&gt;
    &lt;div ng-repeat="text in arr"&gt;
     &lt;span&gt;{{arr[$index]}}&lt;/span&gt; 
     &lt;span&gt;{{arr[$index+1]}}&lt;/span&gt; 
    &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>