[docs] [issue26515] Update extending/embedding docs to new way to build modules in C

Nick Coghlan <ncoghlan@gmail.com> added the comment: Changed target version as per Petr's comment (PEP 573 is close to being accepted for 3.9 - it just needs some editing to improve clarity in the PEP itself, rather than needing any changes to the technical proposal) ---------- versions: +Python 3.9 -Python 3.6, Python 3.7, Python 3.8 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue26515> _______________________________________