Good Practices to Structure an Express App

这是我总结的几个不错的 Express 应用开发实践，最近在很努力地学英语，所以尝试用英文写啦。 http://zihua.li/2014/05/good-practices-to-structure-an-express-app/

语法、表述错误啥的求 Pull Request~: https://github.com/luin/blog/blob/master/content/tech/2014-05-21_good-practices-to-structure-an-express-app.md