[chainlink] check links on edu.chainguard.dev

[github-actions]

Unchecked URLs:

[]

404 URLs

- url: https://docs.renovatebot.com/modules/manager/dockerfile/\#additional-information
  files:
    - ../../content/chainguard/chainguard-images/staying-secure/updating-images/renovate/index.md
- url: https://docs.sigstore.dev/cosign/overview/
  files:
    - ../../content/open-source/sigstore/policy-controller/policies/enforce-sbom-attestation-with-policy-controller.md
    - ../../content/open-source/sigstore/policy-controller/policies/maximum-image-age-policy-controller.md
    - ../../content/open-source/sigstore/policy-controller/policies/using-policy-controller-to-verify-signed-chainguard-images.md
- url: http://0.0.0.0:8080/Chainguard%20Customer
  files:
    - ../../content/chainguard/chainguard-images/getting-started/go.md
- url: https://raw.githubusercontent.com/chainguard-dev/edu-images-demos/734e6171ee69f0e0dbac95e6ebc1759ac18bf00a/nginx/data/linky.png
  files:
    - ../../content/chainguard/chainguard-images/getting-started/nginx/index.md
- url: https://docs.sigstore.dev/cosign/installation/
  files:
    - ../../content/open-source/sigstore/fulcio/how-to-generate-a-fulcio-certificate.md
- url: /open-source/melange/tutorials/getting-started-with-melange/#step-4--building-your-apk
  files:
    - ../../content/open-source/build-tools/apko/troubleshooting.md
- url: https://docs.sigstore.dev/signing/overview/
  files:
    - ../../content/open-source/sigstore/policy-controller/policies/using-policy-controller-to-verify-signed-chainguard-images.md
- url: http://localhost:1313/open-source/wolfi/building-a-wolfi-package/
  files:
    - ../../content/open-source/wolfi/hello-wolfi.md
- url: http://0.0.0.0:8080/version
  files:
    - ../../content/chainguard/chainguard-images/getting-started/go.md
- url: /open-source/melange/tutorials/getting-started-with-melange/
  files:
    - ../../content/chainguard/chainguard-images/how-to-use/how-to-use-chainguard-images.md
    - ../../content/open-source/wolfi/building-a-wolfi-package.md
- url: https://docs.sigstore.dev/cosign/other_types/#sboms-software-bill-of-materials
  files:
    - ../../content/open-source/oci/what-are-oci-artifacts.md
- url: /chainguard/chainguard-images/comparing-images/
  files:
    - ../../content/chainguard/chainguard-images/staying-secure/updating-images/considerations-for-image-updates.md
- url: https://github.com/traefik/traefik-library-image/tree/master/alpine
  files:
    - ../../content/chainguard/chainguard-images/staying-secure/updating-images/how-eol-software-accumulates-cves/index.md
- url: /chainguard/chainguard-images/comparing-images/comparing-images/
  files:
    - ../../content/chainguard/chainguard-images/overview.md

Notes

Add any of the unchecked or 404 URLs to ignore.json as required