Clarify adding additional fields
Clarify adding additional fields

I found the information on adding additional (profile) fields somewhat spread out over the documentation and lacking some examples. This is a proposal to clarify this.
colinskow/superlogin,SteffenDE/superlogin-jwt,colinskow/superlogin,EuAndreh/superlogin,SteffenDE/superlogin-jwt,EuAndreh/superlogin