Export toQuery function

[borozcod]

It would be nice if toQuery was also exported in index.js. There have been times that the only change a component has is a simple css property, to avoid multiple renderings it would be useful to just be able to change that property with a css media query.

Here is the ideal usage:

import { toQuery } from 'react-responsive';
export const MediumQuery = toQuery({ minWidth: 640 });

Then in your styled components you could just import MediumQuery and use like this:

@media ${MediumQuery} {
    ....
}

[yocontra]

Interesting idea - want to send a PR that adds a few tests and exposes it?

Workaround is to import react-responsive/dist/lib/toQuery