title: Exposing Storybook via NextJS route
body: <p>I have a NextJS app and am using Storybook to develop my components.<br />
  After looking through all the NextJS routing documentation, I can't find a way to route to my storybook from within NextJS. Only access pages within the /pages directory.<br />
  What I would like to do it to have my StoryBook available at /styleguide from within my Next app thought all environments.<br />
  Is someone able to help?</p>