message: added doctoc script
diff: "types": "types",
  "scripts": {
  "build": "rollup -c",
  - "watch": "rollup -cw"
  + "watch": "rollup -cw",
  + "doctoc": "./node_modules/doctoc/doctoc.js README.md"
  },
  "browser": {
  "express": false,
  