minor #14765 [Form] Minor rewording (ThomasLandauer)

This PR was merged into the 4.4 branch.

Discussion
----------

[Form] Minor rewording

Follow up of #14760
"The goal of this section will be" is horrible IMHO ;-)

Commits
-------

46322c9 Minor rewording

Author: javiereguiluz

form/form_collections.rst

@@ -280,7 +280,7 @@ On the rendered page, the result will look something like this:
     the ``data-prototype`` attribute is automatically added to the containing ``div``,
     and you need to adjust the following JavaScript accordingly.
 
-The goal of this section will be to use JavaScript to read this attribute
+Now add some JavaScript to read this attribute
 and dynamically add new tag forms when the user clicks the "Add a tag" link.
 This example uses `jQuery`_ and assumes you have it included somewhere on your
 page (e.g. using Symfony's :doc:`Webpack Encore </frontend>`).