Update README.md

README.md

@@ -57,7 +57,7 @@ Please check whether all services started successfully.
 docker compose ps
 ```
 
-After that you should be able to visit http://localhost:80/ and see the rights engine.
+After that you should be able to visit http://localhost:8004/ and see the rights engine.
 
 ### Migrate rights-engine database (only required once after first start)