[docs] [issue13574] refresh example in doc for Extending and Embedding

Berker Peksag <berker.peksag@gmail.com> added the comment: The documentation has been modernized in https://github.com/python/cpython/commit/1d80a561734b9932961c546b0897405a3bf... and the "Weak Reference Support" section has been updated to show the modern way of adding weakref support: https://github.com/python/cpython/commit/1d80a561734b9932961c546b0897405a3bf... ---------- nosy: +berker.peksag resolution: -> out of date stage: needs patch -> resolved status: open -> closed _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue13574> _______________________________________