Fixed #22813 -- Updated Pillow URL in documentation

docs/ref/forms/fields.txt

@@ -649,7 +649,7 @@ For each field, we describe the default widget used if you don't specify
     When you use an ``ImageField`` on a form, you must also remember to
     :ref:`bind the file data to the form <binding-uploaded-files>`.
 
-.. _Pillow: http://python-imaging.github.io/Pillow/
+.. _Pillow: http://pillow.readthedocs.org/en/latest/
 
 ``IntegerField``
 ~~~~~~~~~~~~~~~~

docs/ref/models/fields.txt

@@ -842,7 +842,7 @@ optional arguments:
 
 Requires the `Pillow`_ library.
 
-.. _Pillow: http://python-imaging.github.io/Pillow/
+.. _Pillow: http://pillow.readthedocs.org/en/latest/
 
 By default, :class:`ImageField` instances are created as ``varchar(100)``
 columns in your database. As with other fields, you can change the maximum