Correct the API docs type of createElement

[whs]

I'm new to VueJS, and I spent like 10 minutes figuring out how to use render.

In the API docs render is documented as (createElement: () => VNode) => VNode which is incorrect (createElement does not accept zero arguments). The correct type definition is not even listed anywhere in the API docs (it is in the guide section), even though it is part of the API.

I suggest correcting the type, perhaps if it is too long then add an ellipsis and link to the correct type definition.

[bencodezen]

Thanks for the suggestion @whs! We'll make sure this is clarified in the next iteration of the docs!