Update README to not be stock Remix.

[chrisparsons83]

Things that are important:

• Get rid of blues image at top.
• We don't need email for login. Just remove that section. Maybe add a section about making a dev token on Discord?
• Remove all references to the notes stuff.
• Practically remove all Fly.io stuff, except probably worth referencing that it is hosted on fly.io.

Things that are less important but still important:

• Add references to HeadlessUI and Tailwind Components and HeroIcons
• Remove the stuff that talks about non-Docker deploy. It isn't really worth thinking about in 2022.

[chrisparsons83]

Here's what's left:

• Add a section about making a dev token on Discord
• Add references to HeadlessUI and Tailwind Components and HeroIcons
• Remove the stuff that talks about non-Docker deploy.

[chrisparsons83]

Here's what's left:

• Add a section about making a dev token on Discord
• Add references to HeadlessUI and Tailwind Components and HeroIcons
• Remove the stuff that talks about non-Docker deploy.
• Add section on how everything is structured in folders