Fix db path for compose

docker-compose.yml

@@ -10,7 +10,7 @@ services:
     container_name: iota_goshimmer
     restart: unless-stopped
     volumes:
-      - ./mainnetdb:/root/mainnetdb:rw
+      - ./mainnetdb:/app/mainnetdb:rw
     ports:
       - "14666:14666/tcp"
       - "14626:14626/udp"