removed shared strings example as it is not defaulting to true
removed shared strings example as it is not defaulting to true

antob/activeadmin-axlsx,studentcompetitions/activeadmin-axlsx,owhat/activeadmin-axlsx,hyperoslo/activeadmin-axlsx,ivannovosad/activeadmin-axlsx,toothfairy/activeadmin-axlsx,moscn/activeadmin-axlsx,randym/activeadmin-axlsx