Adding Layerfile to get webapp.io free hosting (heroku's free tier is ending)

[joshdsouza8]

Hey! I'm Josh from webapp.io (Y Combinator, S20). Heroku's free dyno tier is ending, so wanted to do you a quick favour and get your project hosted on webapp.io for free. I've verified the Layerfile added and your project is currently running at war-vessels.onwebapp.io

More info on our hosting here - https://webapp.io/hosting

Please let me know if you have any questions, cheers!