FEATURE (build): Update installation volumes

docker-compose.yml.example

@@ -13,6 +13,8 @@ services:
       dockerfile: Dockerfile
     ports:
       - "4005:4005"
+    volumes:
+      - ./postgresus-data:/app/postgresus-data
     depends_on:
       postgresus-db:
         condition: service_healthy
@@ -24,8 +26,8 @@ services:
     # PostgreSQL ports so it is safe
     environment:
       - POSTGRES_DB=postgresus
-      - POSTGRES_USER=postgresus
-      - POSTGRES_PASSWORD=postgresus
+      - POSTGRES_USER=postgres
+      - POSTGRES_PASSWORD=Q1234567
     volumes:
       - ./pgdata:/var/lib/postgresql/data
     container_name: postgresus-db