URL Shortener app for FCC basejump challenge

Created based on this tutorial:

https://coligo.io/create-url-shortener-with-node-express-mongo/

!!In progess!! to also meet requirements for User Stories based on this example:

https://little-url.herokuapp.com/

!!In progress!! to run on heroku via:

https://git.heroku.com/shortyourl.git or https://shortyourl.herokuapp.com/