[docs] [issue37470] Make it explicit what happens when using a bounded queue with QueueHandler

Change by miss-islington <mariatta.wijaya+miss-islington@gmail.com>: ---------- pull_requests: +14347 pull_request: https://github.com/python/cpython/pull/14534 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue37470> _______________________________________