message: chore: modify travis workflow
diff: sudo: false
  os:
  - linux
  +branches:
  + only:
  + - master
  language: node_js
  install:
  - yarn install
  -
  jobs:
  include:
  - name: deploy docs
  - if: branch = master
  node_js: "10"
  script: yarn docs:build
  deploy:
  