Add wa.dev to Distributing Components

[kate-goldenring]

wa.dev is in public beta now, providing a public registry for people to see and publish interfaces and components. @macovedj would you be willing to update the distributing components section to add a reference on how to use wa.dev and what it is?

[macovedj]

Would love to do that. Will try and get a PR up soon.

[kate-goldenring]

Closing this as we now use GHCR + wkg