silence this docs nitpick on old whatsnew

Author: AlexWaygood

Doc/whatsnew/3.5.rst

@@ -936,7 +936,7 @@ methods to match the corresponding methods of :class:`str`.
 collections.abc
 ---------------
 
-The :meth:`Sequence.index() <collections.abc.MutableSequence.index>` method now
+The :meth:`!Sequence.index` method now
 accepts *start* and *stop* arguments to match the corresponding methods
 of :class:`tuple`, :class:`list`, etc.
 (Contributed by Devin Jeanpierre in :issue:`23086`.)