Update peps/pep-0001.rst

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>

Author: warsaw

peps/pep-0001.rst

@@ -584,7 +584,7 @@ Each PEP should have the following parts/sections:
 14. Change History -- A summary of major changes the PEP has undergone, based on discussions and feedback.
     Think of this as a "changelog" or "release notes" for the PEP.  In general, whenever you update the
     ``Post-History`` header for major changes, add a new bullet item in newest-first (i.e. reverse
-    chronological) order, using the same ``MMM-DD-YYYY`` format, with sub-bullets summarizing the changes.
+    chronological) order, using the same ``DD-MMM-YYYY`` format, with sub-bullets summarizing the changes.
     You can consider linking this to the same link as the ``Post-History`` link.  This isn't mandatory, so
     it's left to the PEP author's discretion, but such a section can be helpful for those following along to
     understand the evolution of your PEP.  Here is :pep:`an example <694#change-history>`.