Deploy Phoenix + Tailwind App to Fly.io

[nelsonic]

We already have a static demo working on GitHub Pages: https://dwyl.github.io/learn-tailwind
And Tailwind [kinda] works with Phoenix on localhost:

Note: fixing the styles on the Todo List is a separate issue: #7

The app name tailwind is available in the global Fly.io namespace: https://tailwind.fly.dev/

But I kinda feel like it's a bit unnecessary to hog it. What do you think? 🤷‍♂️

Todo

• Deploy this Phoenix App to https://learn-tailwind.fly.dev/ or https://phoenix-tailwind.fly.dev