title: how to add user's extra profile information apart from email and password in firebase?
body: <p>I'm using firebase with angular4 with the angularfire2 library. After signing up user with email and password I can see the user has been registered in the database in firebase. However I cannot add extra fields like name, address, etc. I thought of creating a ('/users') list then use the user's Uid to store user profile information. But the document says I can assign "name" and "profile picture". If that's the case I cannot add any field to the users database from authentication.</p>