[DOCS] Write a yaml processor which converts the `actions.yml` to a table for READMEs.

[Damien Retzinger]

📄 Documentation Request

What were you doing?

I was looking at actions and I want to know the inputs. However, I'm forced to read yml. I'd like to read markdown instead.

Expected behavior

See the inputs in the README.md and the actions.yml.

Existing Documentation

These are already documented, we just need a tool that will generate docs from the yml on every PR.