Fix typo (#12599)

Author: nikolas

docs/platforms/python/integrations/celery/index.mdx

@@ -65,7 +65,7 @@ def add(x, y):
     return x + y
 ```
 
-The [`celeryd_init`](https://docs.celeryq.dev/en/stable/userguide/signals.html?#celeryd-init) signal is triggered when the Celery daemon starts, before the worker processes are spawned. If you need to initialize Sentry for each individual worker process, us the [`worker_init`](https://docs.celeryq.dev/en/stable/userguide/signals.html?#worker-init) signal instead.
+The [`celeryd_init`](https://docs.celeryq.dev/en/stable/userguide/signals.html?#celeryd-init) signal is triggered when the Celery daemon starts, before the worker processes are spawned. If you need to initialize Sentry for each individual worker process, use the [`worker_init`](https://docs.celeryq.dev/en/stable/userguide/signals.html?#worker-init) signal instead.
 
 #### Set up Sentry in Your Application