Editing package.json with React app rewired and adding other

package.json

{
  "name": "frontend",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "react": "^16.2.0",
    "react-dom": "^16.2.0",
    "react-loadable": "^5.3.1",
    "react-router-dom": "^4.2.2",
    "react-scripts": "1.0.17",
    "styled-components": "^2.2.4"
  },
  "scripts": {
    "start": "react-app-rewired start",
    "build": "react-app-rewired build",
    "test": "react-app-rewired test --env=jsdom",
    "eject": "react-scripts eject",
  },
  "devDependencies": {
    "react-app-rewired": "^1.3.8",
  }

}