Add ASDF example

[vorburger]

Description

Add https://github.com/asdf-vm example.

Motivation and Context

I came to this page looking for it and it wasn't here yet 😆

How Has This Been Tested?

I've used this on my https://github.com/enola-dev/enola/pull/482 and it looks like it works like this.

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [X] Documentation (add or update README or docs)

Checklist:

• [X] My code follows the code style of this project.
• [X] My change requires a change to the documentation.
• [X] I have updated the documentation accordingly.
• [X] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [X] All new and existing tests passed.

[vorburger]

I've used this on my https://github.com/enola-dev/enola/pull/482 and it looks like it works like this.

Oups, nope; it actually does not, due to https://github.com/asdf-vm/actions/issues/445!

I'll amend this with a workaround from that bug after I've tested it.

All the more useful to add this doc!

[vorburger]

I'll amend this with a workaround from that bug after I've tested it.

Voilà, like this it works.

[vorburger]

Voilà, like this it works.

Nope, still not... 😢 I'll amend this with another workaround from https://github.com/asdf-vm/actions/issues/235, after I've tested it.

[vorburger]

Voilà, like this it really works for me.