Added documentation for dictionary views fixer.

Doc/library/2to3.rst

@@ -129,9 +129,11 @@ and off individually.  They are described here in more detail.
 
    Fixes dictionary iteration methods.  :meth:`dict.iteritems` is converted to
    :meth:`dict.items`, :meth:`dict.iterkeys` to :meth:`dict.keys`, and
-   :meth:`dict.itervalues` to :meth:`dict.values`.  It also wraps existing
-   usages of :meth:`dict.items`, :meth:`dict.keys`, and :meth:`dict.values` in a
-   call to :class:`list`.
+   :meth:`dict.itervalues` to :meth:`dict.values`.  Similarly,
+   :meth:`dict.viewitems`, :meth:`dict.viewkeys` and :meth:`dict.viewvalues`
+   are converted respectively to :meth:`dict.items`, :meth:`dict.keys` and
+   :meth:`dict.values`.  It also wraps existing usages of :meth:`dict.items`,
+   :meth:`dict.keys`, and :meth:`dict.values` in a call to :class:`list`.
 
 .. 2to3fixer:: except