NO-ISSUE: Add NodeDisruptionPolicy docs

[djoshy]

This adds:

• docs for NodeDisruptionPolicy,
• rename MachineConfiguration.md -> MachineConfig.md
• minor logging fixes in the daemon while performing NodeDisruption actions

[openshift-ci-robot]

@djoshy: This pull request explicitly references no jira issue.

In response to this:

This adds:

• docs for NodeDisruptionPolicy,
• rename MachineConfiguration.md -> MachineConfig.md
• minor logging fixes in the daemon while performing NodeDisruption actions

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[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[sinnykumari]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: djoshy, sinnykumari

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• OWNERS [djoshy,sinnykumari]

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[openshift-ci]

@djoshy: The following test 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/e2e-azure-ovn-upgrade-out-of-change	212846e	link	false	/test e2e-azure-ovn-upgrade-out-of-change

Full PR test history. Your PR dashboard.

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[openshift-bot]

[ART PR BUILD NOTIFIER]

This PR has been included in build ose-machine-config-operator-container-v4.17.0-202404291910.p0.g4ea63f5.assembly.stream.el9 for distgit ose-machine-config-operator.
All builds following this will include this PR.