bpo-46013: Fix confusing kerning on period in docs (GH-29989) (GH-32006)

(cherry picked from commit 3af68fc)

Co-authored-by: jmcb <[email protected]>

Co-authored-by: jmcb <[email protected]>

Author: miss-islington

Doc/reference/datamodel.rst

@@ -1435,7 +1435,7 @@ Basic customization
 
    Called by built-in function :func:`hash` and for operations on members of
    hashed collections including :class:`set`, :class:`frozenset`, and
-   :class:`dict`.  :meth:`__hash__` should return an integer. The only required
+   :class:`dict`.  The ``__hash__()`` method should return an integer. The only required
    property is that objects which compare equal have the same hash value; it is
    advised to mix together the hash values of the components of the object that
    also play a part in comparison of objects by packing them into a tuple and