message: Lint markdown in CI
diff: "jest-coverage": "yarn jest --coverage",
  "lint": "eslint . --cache --ext js,md",
  "lint-es5-build": "eslint --no-eslintrc --no-ignore --env=browser packages/*/build-es5",
  - "lint:md": "prettier docs/**/*.md packages/*/README.md packages/*/docs/**/*.md website/blog/*.md .github/*.md CHANGELOG.md CONTRIBUTING.md website/README.md README.md --write",
  + "lint:md": "prettier '**/*.md' --write",
  + "lint:md:ci": "prettier '**/*.md' --list-different",
  "postinstall": "yarn build",
  "publish": "yarn build-clean && yarn build && lerna publish --silent",
  "test-ci-es5-build-in-browser": "karma start --single-run",
  - "test-ci": "yarn typecheck && yarn lint && yarn lint-es5-build && yarn jest-coverage -- -i && node scripts/mapCoverage.js && codecov",
  + "test-ci": "yarn typecheck && yarn lint && yarn lint-es5-build && yarn lint:md:ci && yarn jest-coverage -i && node scripts/mapCoverage.js && codecov",
  "test-ci-partial": "yarn jest -i",
  "test-pretty-format-perf": "node packages/pretty-format/perf/test.js",
  "test": "yarn typecheck && yarn lint && yarn jest",
  