message: docs: add badges to README
diff: @@ -3,6 +3,14 @@ kintone-plugin-packer
  [kintone plugin package.sh](https://github.com/kintone/plugin-sdk) for JavaScript
  +[![npm version][npm-image]][npm-url]
  +[![npm downloads][npm-downloads-image]][npm-url]
  +![Node.js Version Support][node-version]
  +[![build status][circleci-image]][circleci-url]
  +[![windows build status][appveyor-image]][appveyor-url]
  +[![dependency status][deps-image]][deps-url]
  +![License][license]
  +
  It's written in pure JavaScript:
  - Works with Node.js in Mac/Linux/Windows
  @@ -37,3 +45,23 @@ and then
  ```console
  $ npm run package
  ```
  +
  +## License
  +
  +MIT License: Teppei Sato &lt;teppeis@gmail.com&gt;
  +
  +[npm-image]: https://img.shields.io/npm/v/kintone-plugin-packer.svg
  +[npm-url]: https://npmjs.org/package/kintone-plugin-packer
  +[npm-downloads-image]: https://img.shields.io/npm/dm/kintone-plugin-packer.svg
  +[travis-image]: https://img.shields.io/travis/teppeis/kintone-plugin-packer/master.svg
  +[travis-url]: https://travis-ci.org/teppeis/kintone-plugin-packer
  +[circleci-image]: https://circleci.com/gh/teppeis/kintone-plugin-packer.svg?style=svg&circle-token=08a5fd6a348cc436e985fd9ee3e3629a9fc4a5fd
  +[circleci-url]: https://circleci.com/gh/teppeis/kintone-plugin-packer
  +[appveyor-image]: https://ci.appveyor.com/api/projects/status/<TOKEN>/branch/master?svg=true
  +[appveyor-url]: https://ci.appveyor.com/project/teppeis/kintone-plugin-packer/branch/master
  +[deps-image]: https://img.shields.io/david/teppeis/kintone-plugin-packer.svg
  +[deps-url]: https://david-dm.org/teppeis/kintone-plugin-packer
  +[node-version]: https://img.shields.io/badge/Node.js%20support-v4,v6,v7-brightgreen.svg
  +[coverage-image]: https://img.shields.io/coveralls/teppeis/kintone-plugin-packer/master.svg
  +[coverage-url]: https://coveralls.io/github/teppeis/kintone-plugin-packer?branch=master
  +[license]: https://img.shields.io/npm/l/kintone-plugin-packer.svg
  