Update docs for crio

[qlijin]

What type of PR is this?

/kind documentation

What this PR does / why we need it:

Update docs for crio. Add introductions for the following variables:

crio_insecure_registries
crio_registry_auth

And test the installation successfully.

[ErikJiang]

Please clean up extra spaces in the document.

https://gitlab.com/kargo-ci/kubernetes-sigs-kubespray/-/jobs/5899657444#L23

[qlijin]

ok. Thank you for pointing out that.

[VannTen]

You'll need to rebase on latest master to pick the CI vagrant fix

[qlijin]

ok, I'll rebase on latest master.

[VannTen]

/lgtm
(Should re-trigger the failing test I think)
/assign @yankay @mzaian
(approval)

[VannTen]

/retest pull-kubespray-yamllint

[k8s-ci-robot]

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[VannTen]

/test pull-kubespray-yamllint

[yankay]

Thanks @qlijin
/approve

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[APPROVALNOTIFIER] This PR is APPROVED

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