[Form] Replaced $ by jQuery and changed phrasing.

Author: marc.weistroff

book/forms.rst

@@ -931,14 +931,15 @@ and insert it in the form. Here is a sample that you will have to adapt.
 .. code-block:: javascript
  <script type="text/javascript">
  jQuery('#add-element').click(function() {
- var prototype = $('form#my_form #my_collection').attr('data-prototype');
+ var prototype = jQuery('form#my_form #my_collection').attr('data-prototype');
 
  // the level of the prototype is replaced by $$name$$
- // you have to change this to the number of items + 1
+ // you might have have to change this to be coherent
+ // with your row ordering.
  prototype = prototype.replace(/\$\$name\$\$/g, '00');
 
  // Append the prototype to the DOM
- $('#my_prototype').append(prototype);
+ jQuery('#my_prototype').append(prototype);
  });
  </script>