6.16 is GA, let's linkcheck it

[evgeni]

also, guessing, the next satellite version will probably be 6.17 :)

What changes are you introducing?

Why are you introducing these changes? (Explanation, links to references, issues, etc.)

Anything else to add? (Considerations, potential downsides, alternative solutions you have explored, etc.)

Checklists

• [x] I am okay with my commits getting squashed when you merge this PR.
• [x] I am familiar with the contributing guidelines.

Please cherry-pick my commits into:

• [x] Foreman 3.13/Katello 4.15 (Satellite 6.17)
• [x] Foreman 3.12/Katello 4.14 (Satellite 6.16)
• [ ] Foreman 3.11/Katello 4.13 (orcharhino 6.11 on EL8 only)
• [ ] Foreman 3.10/Katello 4.12
• [ ] Foreman 3.9/Katello 4.11 (Satellite 6.15; orcharhino 6.8/6.9/6.10)
• [ ] Foreman 3.8/Katello 4.10
• [ ] Foreman 3.7/Katello 4.9 (Satellite 6.14)
• [ ] Foreman 3.6/Katello 4.8
• [ ] Foreman 3.5/Katello 4.7 (Satellite 6.13; orcharhino 6.6/6.7)
• We do not accept PRs for Foreman older than 3.5.

[github-actions[bot]]

The PR preview for b10b22d36cea016237bbff1b0bd4a38ed2cf1570 is available at theforeman-foreman-documentation-preview-pr-3447.surge.sh

The following output files are affected by this PR:

• Administering_Project/index-satellite.html

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show diff as HTML

[evgeni]

heh, it actually found a dead link :D

[evgeni]

To github.com:theforeman/foreman-documentation.git 4e17f622b0..10ed004e83 3.12 -> 3.12 1f0e4c9014..40724fd8ae 3.13 -> 3.13