Clarified Slices documentation

[mipo256]

The slices documentation does not mention a very important aspect, that is that, technically, Slices do not represent a given set of packages, although the example shows that.

[hankem]

Thanks for your contribution! 🙏 Sorry that this PR has been overlooked for so long... 🙈

Could you please sign-off your commit according to the DCO, cf. Contributing guideline?

[mipo256]

Hey @hankem, yeah, sure, I've signed off the commit

[mipo256]

@hankem done :)

[hankem]

Oh, and one more request (sorry! 🙈): Could you please rebase your branch onto the current main branch?
GitHub might not let me merge it while this branch is out-of-date with the base branch.

[mipo256]

oops, sorry, I'll reopen it :)

CC: @hankem done, rebased

[mipo256]

I applied the suggestion, and the commit is signed off, it is strange that the DCO is red...

[hankem]

Maybe the DCO check was confused because of the discrepancy of the author (you), commiter (me), and sign-off (you, with another name and email address)?
But I think that it should be fine; I found a setting to set the check to pass.

Requested changes have been applied. I'll try to get this merged.

[hankem]

@mipo256, could you allow edits from maintainers (or rebase to main once again)?

GitHub doesn't let me merge this PR because

[mipo256]

Rebased @hankem