* Server testing
* Middleware testing
* CI/CD with Github and Heroku
* PORT: 3001
* Heroku: [chelko-basic-express-prod](https://chelko-basic-express-prod.herokuapp.com/)
* npm start
* Endpoint: '/'
* returns 'Hello World'
* Endpoint: '/bad'
* returns object with 500 error
* Endpoint: '/person'
* returns json object with successful query
* returns object with 500 error and invalid query message
* Enpoint: '/*' (i.e. anything other than '/bad' or '/person')
* returns object with 404 error
* npm test