Remove unnecessary argument from app.listen()

app.listen() Expected 0 arguments, but got 1.

Author: tomer953

content/microservices/basics.md

@@ -33,7 +33,7 @@ async function bootstrap() {
       transport: Transport.TCP,
     },
   );
-  app.listen(() => console.log('Microservice is listening'));
+  app.listen();
 }
 bootstrap();
 @@switch