fix docker-compose postgres volumes

docs/docker/postgres/docker-compose.yml

@@ -5,7 +5,7 @@ services:
     image: postgres
     container_name: postgres
     volumes:
-      - db:/var/lib/postgres
+      - ./postgres:/var/lib/postgresql/data
       - /etc/localtime:/etc/localtime:ro
     environment:
       - POSTGRES_USER=gancio
@@ -28,4 +28,4 @@ services:
     depends_on:
         - db
     ports:
-      - "localhost:13120:13120"
+      - 127.0.0.1:13120:13120