Updated api.md

[RamonGebben]

There was a small error in the docs.

[the-overengineer]

@RamonGebben Thanks for the PR! However, looking at it, I see that there is a mistake, but that is not it. It is supposed to be <NotAuthenticated> here, but the text is incorrect - the element will be shown only if the user is authenticated, but not as an administrator.

[RamonGebben]

Ok sound good, I can recall that there were two blocks describing <NotAuthorized /> is the second one also correct?

[the-overengineer]

@RamonGebben The basic example, without inGroup, is 100% correct. The one you attempted to fix is almost correct, but the text should be something like: You are authenticated as something other than an administrator!