gh-95913: Copyedit, link & format Typing Features section in 3.11 What's New (GH-96097)

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
(cherry picked from commit 558768ff)

Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>

Doc/whatsnew/3.11.rst

@@ -383,10 +383,9 @@ See :pep:`675` for more details.
 (Contributed by Jelle Zijlstra in :issue:`47088`. PEP written by Pradeep
 Kumar Srinivasan and Graham Bleaney.)
 
-
 .. _whatsnew311-pep681:
 
-PEP 681: Data class transforms
+PEP 681: Data Class Transforms
 ------------------------------
 
 :data:`~typing.dataclass_transform` may be used to