I've only just noticed this, but the way these strings are provided on the page are pretty lame. We should add some context to the text. For example:

> The action that was performed: "opened", "closed", or "reopened".

could become

> The action that was performed. Either "opened", "closed", or "reopened".

That would make this line:

> **string** - The action that was performed. Currently, only "published".

This is my URL-accessible note of this, and I'll push up the change :soon:.