The README currently lacks installation instructions for Arch Linux
users, who represent a significant portion of the Linux community.
This forces Arch users to either build manually from source or use
the generic Go install method, both of which bypass the benefits of
package management (dependency tracking, easy updates, and system
integration).
Add AUR installation instructions offering both pre-built binary and
source-based options. This aligns with the existing package manager
approach used for macOS (Homebrew) and provides Arch users with a
native installation path that integrates with their system's package
management workflow.
Signed-off-by: Javier Tia <floss@jetm.me>
