message: revert back change
diff: +version: 2
  +jobs:
  + build:
  + docker:
  + - image: circleci/node:10.0.0
  +
  + working_directory: ~/repo
  +
  + steps:
  + - checkout
  +
  + - run: yarn install && yarn build
  +
  + - run: cp ./now.json ./public
  +
  + - run: sudo npm install --global --unsafe-perm now@13.1.2
  +
  + - run: now -t $NOW_TOKEN && now -t $NOW_TOKEN alias
  