Docs: Dgraph Increment vs ACL

There was confusion on my part regarding the dgraph live --auth_token thinking this was accessJwt, and wondering why dgraph increment doesn’t have --auth_token as well.

I was pointed to a discussion and documentation on this for non-ACL auth_token:

I am not sure if this is something in documentation in regards for dgraph increment. I can take this and add docs around this.