atomis: add notify alias

PR-URL: https://github.com/nodejs/node/pull/21413
Refs: https://github.com/nodejs/node/issues/21219


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>