Docker run command beta

docker run --restart=unless-stopped -d \
  -p 54000:54000 \
  -p 127.0.0.1:55000:55000 \ # (1)
  -p 127.0.0.1:57000:57000 \ # (2)
  -v ${NANO_HOST_DIR}:/root \
  --name ${NANO_NAME} \
  nanocurrency/nano-beta:${NANO_TAG}

1. Port 55000 is optional, but recommended, for querying via RPC
2. Port 57000 is optional for connecting via WebSockets