info about sorting int values

sortElements/README.md

@@ -24,6 +24,22 @@ That would result in:
         <li>Banana</li>
         <li>Carrot</li>
     </ul>
+
+If you want to sort simple integer values like:
+
+    <ul>
+        <li>13</li>
+        <li>44</li>
+        <li>7</li>
+        <li>1</li>
+    </ul>
+
+You should use parseInt() function to convert string values to integer:
+
+    $('li').sortElements(function(a, b){
+        return parseInt($(a).text()) > parseInt($(b).text()) ? 1 : -1;
+    });
+
 
 It also let's you specify what element will be sorted. The current collection's elements will be those referred to as `a` and `b` on each call of the comparator, but you might not want those elements to be the ones to move. E.g. you might want it to be a parent. For example, when sorting a table column, you would sort by the `<td>` elements, but the elements you actually want to move within the DOM are the `<tr>` (each `<td>`'s parent):
 
@@ -32,4 +48,4 @@ It also let's you specify what element will be sorted. The current collection's
         return this.parentNode;
     });
 
-See more info here: [http://james.padolsey.com/javascript/sorting-elements-with-jquery/](http://james.padolsey.com/javascript/sorting-elements-with-jquery/).
+See more info here: [http://james.padolsey.com/javascript/sorting-elements-with-jquery/](http://james.padolsey.com/javascript/sorting-elements-with-jquery/).