Docs: Use the correct example module in warnings.rst (GH-137402)

(cherry picked from commit 37b9a5d)

Co-authored-by: Mendel Feygelson <[email protected]>

Author: mfeyg

Doc/library/warnings.rst

@@ -451,7 +451,7 @@ Available Functions
           lower.one_way(**kw)
 
    This makes the warning refer to both the ``example.lower.one_way()`` and
-   ``package.higher.another_way()`` call sites only from calling code living
+   ``example.higher.another_way()`` call sites only from calling code living
    outside of ``example`` package.
 
    *source*, if supplied, is the destroyed object which emitted a