When calling toAuthJSON method of the User model to return user data for editing Settings page, bio and image are empty which is inconsistent with angular2.realworld.io. Bio and imageUrl added to toAuthJSON method on User model. Node tutorial needs this, too. (#32)

Author: yukichikawada

models/User.js

@@ -43,7 +43,9 @@ UserSchema.methods.toAuthJSON = function(){
   return {
     username: this.username,
     email: this.email,
-    token: this.generateJWT()
+    token: this.generateJWT(),
+    bio: this.bio,
+    image: this.image
   };
 };