doc: Fix instructions for mac quarantine bit

[jrddupont]

Pull Request Checklist

• The Rayhunter team has recently expressed interest in reviewing a PR for this. If not, this PR may be closed due our limited resources and need to prioritize how we spend them.
• Added or updated any documentation as needed to support the changes in this PR.
• Code has been linted and run through cargo fmt
• If any new functionality has been added, unit tests were also added

[jrddupont]

The xattr -d com.apple.quarantine install command does not work because the file is not named install

[untitaker]

thank you!