Fix Bro IDS export docs
Fix Bro IDS export docs

As per https://github.com/MISP/MISP/pull/1726 the "allowNonIDS" option was explicitly removed from Bro IDS export, update the docs accordingly
(some hairpulling was done prior to this finding...)

MISP/MISP,SteveClement/MISP,SteveClement/MISP,MISP/MISP,SteveClement/MISP,SteveClement/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,MISP/MISP