Explain naming scheme for NodeBuilder, Action, DefaultActionVerb, etc, in documentation

[PoignardAzur]

AccessKit includes a few types with undocumented methods, variants, etc:

• Action
• DefaultActionVerb
• NodeBuilder
• Node

It's clear enough that these method/variant names come from somewhere, but it's not clear what. My understanding from what you said is that the names come from the Chromium accessibility API? But I'm not sure what that API even is.

While in the long term it would be better to document every property, in the short term it would be nice if the four types listed above could include a link to respective page for the Chromium spec they draw from. This way people trying to understand AccessKit's semantics could at least use the Chromium spec as a starting point.