possible types can be added to documentation

[gustawdaniel]

I found only warn and info that I can create my types. But where is list of types supported by default?

[gustawdaniel]

Now I see:

warn, error, success

on page:

https://github.com/euvl/vue-notification#readme

but on page:

https://www.npmjs.com/package/vue-notification

there is no info about it. And etc in docs shows that there can be other types.

[github-actions]

Stale issue message