Doc review 8 26 2

@tthompson-okta @croche-okta @stsai-okta @srinivasanagandla-okta @lboyette-okta @wdawson-okta @hoanguyen-okta @karlmcguinness-okta @cwu-okta 

Mostly for Trevor--reset factors API doc.
Actually, this returns an empty object right now instead of the complete user object. I noticed the existing Lifecycle Operations are inconsistent about this; some do it one way and some do it the other. I want to make sure we're deliberate about which one we choose, so I'll leave it to @karlmcguinness-okta to comment on this.