[docs] [issue39128] Document happy eyeball parameters in loop.create_connection signature docs

Andrew Svetlov <andrew.svetlov@gmail.com> added the comment: Ideally, a small chapter with a description of Happy Eyeballs algorithm would be nice to have but I don't insist. Updating the method signature is a big step anyway. ---------- keywords: +easy _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue39128> _______________________________________