docs: add AUR instructions

[malteo]

I reorganized the Install section and split the launch command in a new Usage one, let me know if that's correct for you

[Lifailon]

Very interesting implementation!
I've never used the Arch distribution, so I'm curious. Tell me, were you able to check the installation from aur and the functionality of the application on the system?
Can you also tell me whether packages need to be uploaded manually with each version or is there synchronization with git?

[malteo]

To be clear, I also wrote the PKGBUILD and published it in the AUR (you can inspect it here).

It follows Arch's Go package guidelines and is built in a clean chroot.

I indeed installed and tested the basic functionality of the app built from my package, and found it working fine.

There's no need for you to upload anything else, I'll star the repo and follow the releases to update the package accordingly.

[Lifailon]

Great, thanks for the feedback and support!

[Lifailon]

There's no need for you to upload anything else, I'll star the repo and follow the releases to update the package accordingly.

also mentioned you in the README file for your contributions ;)