[docs] [issue33609] Document that dicts preserve insertion order

Cheryl Sabella <cheryl.sabella@gmail.com> added the comment: As reference, issue32337 made some changes documenting that the dicts preserve insertion order. Also, issue33218 was marked as being superseded by #32337. ---------- nosy: +cheryl.sabella _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue33609> _______________________________________