message: Move prettier to devDependencies
diff: "bugs": "https://github.com/prettier/plugin-pug/issues",
  "license": "MIT",
  "dependencies": {
  - "prettier": "~1.18.2",
  "pug-lexer": "~4.1.0"
  },
  "devDependencies": {
  "eslint-config-prettier": "~6.5.0",
  "eslint-plugin-prettier": "~3.1.1",
  "jest": "~24.9.0",
  + "prettier": "~1.18.2",
  "ts-jest": "~24.1.0",
  "typescript": "~3.7.2"
  },
  