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.
What happens when you call this operation when MFA is disabled for org or the users has no factors enrolled?  If nothing that we are OK.  If there are error scenarios or gotchas we should document