Change URL format

Author: vstinner

peps/pep-0782.rst

@@ -1,7 +1,7 @@
 PEP: 782
 Title: Add PyBytesWriter C API
 Author: Victor Stinner <vstinner@python.org>
-Discussions-To: `31-Mar-2025 <https://discuss.python.org/t/pep-782-add-pybyteswriter-c-api/86617>`__
+Discussions-To: https://discuss.python.org/t/86617
 Status: Draft
 Type: Standards Track
 Created: 27-Mar-2025