OCPBUGS-55425: README and Makefile improvements

[Mylanos]

No description provided.

[openshift-ci-robot]

@Mylanos: This pull request references Jira Issue OCPBUGS-55425, which is invalid:

• expected the bug to target the "4.19.0" version, but no target version was set

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

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[Mylanos]

/retest

[jhadvig]

/lgtm
/approve

[jhadvig]

/retest

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jhadvig, Mylanos

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[Mylanos]

/retest

[openshift-ci]

New changes are detected. LGTM label has been removed.

[Mylanos]

/retest

[Mylanos]

/retest

[openshift-ci]

@Mylanos: all tests passed!

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