now.json config url rewrite for react app

now.json

{
  "name": "supertesting-test2",
  "alias": "supertesting-test2.now.sh",
  "version": 2,
  "builds": [
    {
      "src": "package.json",
      "use": "@now/static-build"
    }
  ],
  "routes": [
    {
      "src": "^/static/(.*)",
      "dest": "/static/$1"
    },
    {
      "src": "^/images/(.*)",
      "dest": "/images/$1"
    },
    {
      "src": "^/favicon.ico",
      "dest": "/favicon.ico"
    },
    {
      "src": "^/asset-manifest.json",
      "dest": "/asset-manifest.json"
    },
    {
      "src": "^/manifest.json",
      "dest": "/manifest.json"
    },
    {
      "src": "^/service-worker.js",
      "headers": {
        "cache-control": "s-maxage=0"
      },
      "dest": "/service-worker.js"
    },
    {
      "src": "^/precache-manifest.(.*)",
      "dest": "/precache-manifest.$1"
    },
    {
      "src": "^/boka",
      "dest": "/boka/index.html"
    },
    {
      "src": "^/(.*)",
      "dest": "/index.html"
    }
  ]
}