v11: main: add os.Exit(1) on failed

if we failed any URL the entire job should fail.

v10

workflow: bump to v10

v9: README: improvde the explanation

Improve the explanation of the action and provide a screenshot for context on a GitHub release asset.

v8: actions: rename to action.yaml

Maybe that will help turn on publish?
https://docs.github.com/en/actions/creating-actions/publishing-actions-in-github-marketplace#publishing-an-action

v6

github: bump to v6

v5

main: add transparency log insert

v4

wip

v3

wip