[Backport perf-v16] feature(sct_config): generate markdown as list

[mergify]

the table generated into docs/configuration_options.md was not very readable and more, and need to be vertical scrolling, that make it hard to work with.

this change is replacing the table with a header list of each configuration and make it a bit more readable and automaticlly linkable with no further tricks.

Testing

• [ ]

PR pre-checks (self review)

• I added the relevant backport labels
• I didn't leave commented-out/debugging code

Reminders

• Add New configuration option and document them (in sdcm/sct_config.py)
• Add unit tests to cover my changes (under unit-test/ folder)
• Update the Readme/doc folder relevant to this change (if needed)

(cherry picked from commit bb016d1)

Parent PR: #9558

[mergify]

Cherry-pick of bb016d1 has failed:

On branch mergify/bp/branch-perf-v16/pr-9558
Your branch is up to date with 'origin/branch-perf-v16'.

You are currently cherry-picking commit bb016d1a.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   sdcm/sct_config.py

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   docs/configuration_options.md

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally