readme update

README.md

@@ -73,8 +73,8 @@ To start the registry server with the default configuration, run:
 announce_server start_registry
 ```
 
-To start the registry server with a custom IP address, port number, heartbeat interval, and timeout, run:
+The full syntax is equivalent to:
 
 ```bash
-announce_server start_registry --address localhost --port 4998 --heartbeat_interval 10 --heartbeat_timeout 5
+announce_server start_registry --address 0.0.0.0 --port 4999 --heartbeat_interval 5 --heartbeat_timeout 3
 ```