message: added dotenv npm package to get param from .env
diff: "node-sass": "^4.13.1",
  "prettier": "^2.0.4",
  "react-scripts": "3.4.0",
  - "typescript": "~3.7.4"
  + "typescript": "~3.7.4",
  + "dotenv": "^8.2.0"
  },
  "proxy": "http://localhost:8080"
  }
  