fix: README.md quay.io link missing https:// prefix

[shebistar]

Problem

In README.md, the Quay registry link is written without the https:// scheme:

[redhat-cop/openshift-virtualization-migration-ee](quay.io/redhat-cop/openshift-virtualization-migration-ee)

This renders as plain text rather than a clickable hyperlink in GitHub and most Markdown renderers.

Proposed Solution

Update the link to include the full URL scheme:

[redhat-cop/openshift-virtualization-migration-ee](https://quay.io/redhat-cop/openshift-virtualization-migration-ee)

Files to Change

• README.md