3.15 update

[lhellebr]

What changes are you introducing?

3.15 branching changes

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

3.15 branching, according to https://github.com/theforeman/foreman-documentation#branching-new-release

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:

• [ ] Foreman 3.14/Katello 4.16
• [ ] Foreman 3.13/Katello 4.15 (EL9 only)
• [ ] Foreman 3.12/Katello 4.14 (Satellite 6.16; orcharhino 7.2 on EL9 only)
• [ ] Foreman 3.11/Katello 4.13 (orcharhino 6.11 on EL8 only; orcharhino 7.0 on EL8+EL9; orcharhino 7.1 with Leapp)
• [ ] 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)
• We do not accept PRs for Foreman older than 3.7.

[github-actions[bot]]

The PR preview for 377e974fcc368932669c1ca92cbb9826089381d6 is available at theforeman-foreman-documentation-preview-pr-3854.surge.sh

The following output files are affected by this PR:

• Installing_Proxy/index-foreman-el.html
• Installing_Proxy/index-katello.html
• Planning_for_Project/index-foreman-deb.html
• Planning_for_Project/index-foreman-el.html
• Planning_for_Project/index-katello.html
• Upgrading_Project/index-foreman-deb.html
• Upgrading_Project/index-foreman-el.html
• Upgrading_Project/index-katello.html

show diff

show diff as HTML

[lhellebr]

This shows in my locally generated docs:

A release candidate is available for testing:

    [Foreman 3.15 - Katello 4.17](http://localhost:3000/release/3.15/)

I don't see it in the version generated by the pipeline. Is that expected?

[aneta-petrova]

I don't see it in the version generated by the pipeline. Is that expected?

It is expected. The previews generated by GHA use website content from master, not from the PR branch.