@stevepiercy can you review this PR? I tried my best to follow Plone documentation styleguide, but I might have missed a few things. Thank you!

@Manas-Kenge you haven't responded to my earlier comment:

especially the one sentence per line guideline.

Sorry for the late reply @stevepiercy, I was busy.

The original content needed a thorough edit job. Conceptual guide or explanation material does not belong in a how-to guide, such as this one. Even now, it may have too much explanation, but we don't have such a conceptual guide to refer to. Ideally, we'd have a thorough entry in the Admin guide.

I am not in favor of listing collective.recipe.backup here as its only tested and compatible (as per info on docs) upto PY3.9 and is not maintained actively anymore.

@rohnsha0 where did you get that information? See https://github.com/collective/collective.recipe.backup/blob/master/CHANGES.rst.

Anyway, I'm OK with this PR now, except I want a technical review from someone else.

@plone/classicui-team can I get a technical review from y'all?

@davisagli thanks for the context.

@Manas-Kenge would you please perform the following:

• Move the content from lines 55-130 into its own page, entitled "Back up and restore a Plone buildout", located at docs/admin-guide/backup-restore-plone-buildout.md, as suggested by @davisagli?

• Use an existing page in docs/admin-guide/ as a template to add its html meta attributes.

• Add a toctree entry in docs/admin-guide/index.md for the new page.

• In its former location, add a seealso.

  ```{seealso}
  For a Plone site installed via buildout, follow {doc}`/admin-guide/backup-restore-plone-buildout` for details.
  ```
  

Thank you!