Update README.md

Co-authored-by: Connor Sheehan <sheehan@mozilla.com>

Author: shtrom

README.md

@@ -39,7 +39,7 @@ $ echo '{"payload": {"type": "push", "repo_url": "bla", "branches": [ "main" ],
 
 (The message can also be received with `docker compose run --rm recv`.)
 
-The RabbimMQ management interface is available at http://localhost:15672/, and
+The RabbitMQ management interface is available at http://localhost:15672/, and
 the login and password are `guest` (don't do this at home, or in prod).
 
 ## Build and test