docs: update boot loader spec link

[samcday]

Docs currently link to this deprecated freedesktop wiki page, which directs users to this deprecated systemd page, which directs users to the UAPI Group spec.

[openshift-ci]

Hi @samcday. Thanks for your PR.

I'm waiting for a ostreedev member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[ericcurtin]

LGTM

[ericcurtin]

/ok-to-test

[ericcurtin]

My permissions may not be sufficient for external contributors, I think I'm part of ostree but not ostreedev, anyway someone will get to this 😄

[cgwalters]

/override ci/prow/fcos-e2e

[openshift-ci]

@cgwalters: Overrode contexts on behalf of cgwalters: ci/prow/fcos-e2e

In response to this:

/override ci/prow/fcos-e2e

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.