Include Arch-based installation commands

[Gabbar-v7]

Added installation instructions for Arch-based distros.

Description of what this PR is changing or adding, and why:
Just adds installation commands for arch based distros. I find myself looking for arch equivalent for the package names that are given for debian when installing on an arch based distro

Issues fixed by this PR (if any):

PRs or commits this PR depends on (if any):

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[gemini-code-assist]

Code Review

This pull request adds dependency installation instructions for Arch-based Linux distributions using the pacman package manager to the manual installation guide. The reviewer suggested replacing the niche 'CachyOS' example with a more widely recognized distribution like 'Manjaro' to make the documentation more accessible and familiar to a broader audience.

[gemini-code-assist]

While CachyOS is an Arch-based distribution, it is relatively niche compared to other derivatives. Using a more widely recognized and popular Arch-based distribution like Manjaro or EndeavourOS as the example makes the documentation more helpful and familiar to a broader audience.

Suggested change:

    On Arch-based distros with `pacman`, such as Manjaro,
    install these packages using the following commands: