pages*/linux/*: update links

[znarfm]

found github base repo urls using:

grep -oP '\bhttps?://github\.com/[A-Za-z0-9-]+/[A-Za-z0-9_.-]+/?(?=$|\s|[.,;:)\]}>])' pages/linux/*

I manually check each base page if they point to another website (of their own) or a file for a more detailed documentation, or if they have a section for usage instructions (so that we can point the link towards that section specifically -- like #usage in READMEs).

focusing on linux for now, then i will open new PRs if I found more.

incl:

• apx
  • apx-stacks
  • apx-pkgmanagers
• abroot
• aurpublish
• auto-cpufreq
• curlie
• braa
• backlight_control
• bluebuild
• beep
• br, broot

[sebastiaanspeck]

GitHub isn't discouraged as link: https://github.com/tldr-pages/tldr/blob/main/contributing-guides/style-guide.md#more-information-links

Please be very selective about changing all Linux GitHub URLs to manned.org, which is a fallback, not the standard.

Feel free to close this PR (or be very selective).

[znarfm]

I've listed out my rationale for why I updated the links

[Managor]

I recommend updating the english link only in the future and then using scripts/set-more-info-link.py -S to do them in bulk at a later date. Since these translation changes are no-brainer, the less we ping the translators, the better.

[Managor]

I looked through all the changes and most seem reasonable.

[tldr-bot]

Hello! I've noticed something unusual when checking this PR at commit
efc9ea612c4b59531565d4939f2a1da3585a180f:

• The page pages.pt_BR/linux/broot.md seems to be a copy of pages.pt_BR/linux/br.md (54% matching).

Is this intended? If so, just ignore this comment. Otherwise, please double-check the commits.