Task: Heroku 💔 ... Deploy to Fly.io 🚀

There's no such thing as "[free](https://en.wikipedia.org/wiki/No_such_thing_as_a_free_lunch)" Apps on `Heroku` anymore ... 🤦‍♂️

https://phoenix-content-negotiation.herokuapp.com/.json

I don't have time to address this right now ... ⏳
But I am going to remove the link from the repo:

Just so we aren't sending anyone there. 🚫

# Todo

+ [ ] Deploy a simple quotes app to `Fly.io` that displays a quote
+ [ ] Curate a few `unsplash` backgrounds: https://unsplash.com/s/photos/nature-background
e.g:
+ https://unsplash.com/photos/green-mountains-and-green-trees-beside-river-under-blue-sky-during-daytime-vK26p2SFX3E
+ https://unsplash.com/photos/green-trees-on-green-grass-field-under-blue-sky-and-white-clouds-during-daytime-OJ02cQHePds

+ [ ] Stretch Goal: use `tags` to display a background image that is _relevant_ to the quote.

Start by reviewing the existing quotes app and its current Heroku deployment references in the repository, then identify the entry point that serves the quote view. The issue's tasks are to deploy a simple quotes app to Fly.io, curate Unsplash backgrounds, and optionally relate backgrounds to quote tags. Done means the app is reachable on Fly.io and displays quotes with the selected backgrounds.

Written by the indexing model from the issue text.