[docs] [issue26205] Better specify number of nested scopes

Change by miss-islington <mariatta.wijaya+miss-islington@gmail.com>: ---------- pull_requests: +20490 pull_request: https://github.com/python/cpython/pull/21342 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue26205> _______________________________________