Documentation for file argument of the callback function

[slavafomin]

Hello!

Thank you for this great module!

However, what is the file argument of the callback function passed to named()? It's not mentioned in the docs and there is no examples of how to use it.

Could you please extend the docs a bit? Thanks!

[slavafomin]

Well, I now see that this is the Vinyl File.

However, it's always interesting to learn how things work (especially Gulp ecosystem and it's vinyl things), but for new users it would really be cool to add some more docs pointing to the correct API description (also probably because JS in untyped).