Merge pull request #3028 from xabbuh/date-format-fixes

fix typo and move reference to the appropriate file

Author: weaverryan

reference/forms/types/date.rst

@@ -151,5 +151,3 @@ These options inherit from the :doc:`field </reference/forms/types/form>` type:
 .. include:: /reference/forms/types/options/virtual.rst.inc
 
 .. include:: /reference/forms/types/options/error_mapping.rst.inc
-
-.. _`RFC 3339`: http://tools.ietf.org/html/rfc3339

reference/forms/types/options/date_format.rst.inc

@@ -20,9 +20,10 @@ For more information on valid formats, see `Date/Time Format Syntax`_::
 
 .. note::
 
-    If you want your field to be rendered as an HTML5 "date" field, you have
+    If you want your field to be rendered as an HTML5 "date" field, you have to
     use a ``single_text`` widget with the ``yyyy-MM-dd`` format (the `RFC 3339`_
     format) which is the default value if you use the ``single_text`` widget.
 
 .. _`Date/Time Format Syntax`: http://userguide.icu-project.org/formatparse/datetime#TOC-Date-Time-Format-Syntax
-.. _`IntlDateFormatter::MEDIUM`: http://www.php.net/manual/en/class.intldateformatter.php#intl.intldateformatter-constants
+.. _`IntlDateFormatter::MEDIUM`: http://www.php.net/manual/en/class.intldateformatter.php#intl.intldateformatter-constants
+.. _`RFC 3339`: http://tools.ietf.org/html/rfc3339