Actions added but not appearing in repo tab?

I’m trying out Actions on my personal site before adding them to my company repos. 

I’ve added two simple actions here;

https://github.com/barrymcgee/barrymcgee.co.uk/tree/master/.github/workflows

  • Greet everyone (example straight from official docs)

  • Assignee to reviewer (3rd party action)

From neither of these run nor do they appear in my repo “Actions” tab:

What gives? :face_with_monocle:

Hi @barrymcgee,

Thanks for being here! Thanks for reaching out! Looks like you’ve not been enabled for the new version, therefore YAML wouldn’t run, for more info about migrating to YAML from HCL check out:  https://help.github.com/en/articles/about-github-actions#migrating-github-actions-from-hcl-to-yaml-syntax