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 enola-dev/enola#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)
• Documentation (add or update README or docs)

Checklist:

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

[vorburger]

I've used this on my enola-dev/enola#482 and it looks like it works like this.

Oups, nope; it actually does not, due to asdf-vm/actions#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 asdf-vm/actions#235, after I've tested it.

[vorburger]

Voilà, like this it really works for me.