[docs] [issue40045] Make "dunder" method documentation easier to locate

Change by miss-islington <mariatta.wijaya+miss-islington@gmail.com>: ---------- pull_requests: +18561 pull_request: https://github.com/python/cpython/pull/19199 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue40045> _______________________________________