message: fix scratch task
diff: "lint": "tslint ./src/**/*.ts",
  "test-watch": "tsc --noEmit && jest --config ./jestconfig.js --watch",
  "test": "tsc --noEmit && jest --config ./jestconfig.js",
  - "scratch": "ts-node ./src/scratch.ts --watch",
  + "scratch": "ts-node ./src/scratch.ts",
  "typedoc": "typedoc --mode file --exclude **/__tests__/** --includeDeclarations --excludeExternals --target ES6 --out docs/ src/"
  },
  "author": "Xero <api@xero.com>",
  