使用husky规范commit记录

npm install --save-dev @commitlint/{config-conventional,cli}
npm install --save-dev husky

{
  "husky": {
    "hooks": {
      "commit-msg": "commitlint -E HUSKY_GIT_PARAMS"
    }  
  }
}

type(scope?): subject  #scope is optional

chore: run tests on travis ci

feat(blog): add comment section

fix(server): send cors headers