[ANAMASGARD]

Summary

The documented GitHub Pages chart repository returns 404, and the documented Quay OCI chart endpoint is unavailable to anonymous users. This leaves the Helm quickstart without a usable chart source.

Update the main README, chart guide, and OpenShift walkthrough to install the controller from the chart included in a source checkout:

• Document cloning the repository, selecting an optional Git revision, exporting and editing values, and installing from ./helm.
• Use the local chart for upgrades, preserving the release namespace and custom values.
• Correct the image override to global.image.tag and explain that selecting a Git revision does not automatically select a matching container image.
• Remove the broken chart badge, hosted-chart command examples, and obsolete version and release claims. Retain the personal repository only for the walkthrough's separate VM chart dependency.

This is a documentation-only workaround for #21. It does not restore public chart hosting or change the application, chart metadata, defaults, or publishing configuration.

Fixes #21

Validation

• helm show values ./helm
• helm lint ./helm
• helm template with defaults, exported values, and the OpenShift walkthrough's custom values
• Image-tag override checks for both custom value sets, confirming the rendered deployment uses the requested global.image.tag
• git diff --check

All checks passed. No live Kubernetes or OpenShift deployment was tested.

AI assistance

An AI assistant was used to prepare and review the documentation changes, run validation, and raise this PR.

[kubevirt-prow]

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