csi_example.md needs updating and hyperlink example yamls.

[kaovilai]

Is your feature request related to a problem? Please describe.

https://github.com/openshift/oadp-operator/blob/master/docs/examples/CSI/csi_example.md is out of date
namely csi plugin is still in defaultPlugins

and manifest examples (manually) point to a symlink that do not exists any longer or was renamed. need to hyperlink to make it easier to navigate.
Describe the solution you'd like

Describe alternatives you've considered

Additional context

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/lifecycle stale

[kaovilai]

/lifecycle frozen