rabbitmq instructions

Signed-off-by: Arnav Gupta <[email protected]>

Author: championswimmer

README.md

@@ -43,4 +43,12 @@ We need a PostgreSQL database to run. Please configure the following env variabl
     DB_PASS='judgeapi',
     DB_HOST='localhost'
 ```
-### Queue (RabbitMQ)
+### Queue (RabbitMQ)
+
+```
+brew install rabbitmq
+brew services start rabbitmq
+rabbitmqctl add_user codingblocks codingblocks
+rabbitmqctl set_user_tags codingblocks administrator
+rabbitmqctl set_permissions -p / codingblocks conf write read
+```