title: Access publicly shared notebook via API
body: <p>I have a mobile app that I would like to use OneNote as the 'back end' for, serving up html from pages of a publicly shared notebook. Scouring the OneNote API, I can't find any methods to access a notebook that has been shared publicly without authorization. The app will be used by anonymous consumers, not owners of the notebooks. If I register my Application and get a Client ID, it seems all the examples expect the end user to authenticate, but the end user in the case will be anonymous, accessing notebooks that have been shared by Office 365 users. AM I headed in the wrong direction with this?</p>