Change port mapping from 3000 to 6000

dockhand/docker-compose.yml

@@ -3,7 +3,7 @@ services:
     container_name: dockhand
     image: fnsys/dockhand:latest
     ports:
-      - 3000:3000
+      - 6000:3000
     environment:
       DATABASE_URL: postgres://postgres:1qaz2wsx%40@10.1.80.6:5432/dockhand
     volumes: