update faq to reflect what a duress key provides
update faq to reflect what a duress key provides

xmission/d-note,printerpam/d-note,printerpam/d-note,xmission/d-note,atoponce/d-note,xmission/d-note,xmission/d-note,herlo/d-note,atoponce/d-note,xmission/d-note,atoponce/d-note,printerpam/d-note,herlo/d-note