docs: update rebasing documentation

[HonkingGoose]

Changes:

This is in essence a copy/paste of the good stuff from PR #8029.

• Reduce capitalization
• Better explain that Renovate "rebase" is not Git rebase
• Fix white space in ordered list
• Let Markdown renderer worry about ordering the list
• Rewrite manual rebasing section

Context:

Let's try this again in a docs only format... 😄

Helps with #7626.

The Renovate wizards will need to check if the descriptions are still accurate to the current Renovate back-end behavior, as that was recently changed.

Documentation (please check one with an [x])

• I have updated the documentation, or
• No documentation update is required

How I've tested my work (please tick one)

I have verified these changes via:

• Code inspection only, or
• Newly added unit tests, or
• No new tests but ran on a real repository, or
• Both unit tests + ran on a real repository

[viceice]

🧙🧙 😅

[rarkins]

I would think that renovate will not by default rebase every merge request, when something else is committed to the master branch.

This is either not correct or a misunderstanding. And now it's clearly documented when it will happen (which is not every time, by default).

I don't see any further action required.

[viceice]

LGTM

[HonkingGoose]

@rarkins What do you think of this?

[renovate-release]

🎉 This PR is included in version 24.90.0 🎉

The release is available on:

• GitHub release
• 24.90.0

Your semantic-release bot 📦🚀