PowerVS Refactor docs - bug fixes

[dharaneeshvrd]

What this PR does / why we need it:
Fixes https://issues.redhat.com/browse/MULTIARCH-2985

Which issue(s) this PR fixes (optional, use fixes #<issue_number>(, fixes #<issue_number>, ...) format, where issue_number might be a GitHub issue, or a Jira story:
Fixes #

Checklist

• Subject and description added to both, commit and PR.
• Relevant issues have been referenced.
• This change includes docs.
• This change includes unit tests.

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[openshift-ci]

@dharaneeshvrd: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/capi-provider-agent-sanity	70ee90b	link	false	/test capi-provider-agent-sanity
ci/prow/periodics-4.13-images	70ee90b	link	true	/test periodics-4.13-images

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[enxebre]

/approve
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dharaneeshvrd, enxebre

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