AUR package

[wezm]

I created an AUR (Arch User Repository) package for amber: https://aur.archlinux.org/packages/amber-secrets/

I called it amber-secrets as there is already a package called amber (the Crystal web-framework). It also depends on the system libsodium instead of statically linking its own copy.

Anyway, just passing on the info to let you know it's out there. Not sure if it's worth mentioning in the install section of the README or not.

[snoyberg]

Thank you! I'd definitely accept a PR adding some comments about distro packages to the README. CC @psibi, who I think packaged Amber up for Nix as well, which may be relevant.