Update URLs
- Update mkinitcpio-archiso project link,
- Update code of conduct link,
- Update arch-releng mailing list link,
- Use HTTPS where possible,
- Replace dead link.
Due to an influx of spam, we have had to temporarily disable account registrations. Please write an email to accountsupport@archlinux.org, with your desired username, if you want to get access. Sorry for the inconvenience.