T9229: adds documentation for sys-rawio (backport #2215)

[mergify]

Change Summary

Related Task(s)

https://vyos.dev/T9229

Related PR(s)

vyos/vyos-1x#5419

Backport

Checklist:

• I have read the CONTRIBUTING document

  ---

  This is an automatic backport of pull request T9229: adds documentation for sys-rawio #2215 done by Mergify.

[mergify]

Cherry-pick of c139696 has failed:

On branch mergify/bp/circinus/pr-2215
Your branch is up to date with 'origin/circinus'.

You are currently cherry-picking commit c1396965.
  (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)

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

no changes added to commit (use "git add" and/or "git commit -a")

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

[mergify]

Merge Protections

🔴 1 of 1 protections blocking · waiting on 🙋 you

	Protection	Waiting on
🔴	backport-conflict label must be absent to merge	🙋 you

🔴 backport-conflict label must be absent to merge

Waiting for

• label != backport-conflict

This rule is failing.

Block merge while the backport-conflict label is present. The label is auto-applied by the backport action on cherry-pick conflicts and must be manually removed after the conflict is resolved in the PR.

• label != backport-conflict