Add initial infosec README
Add initial infosec README

lionell/labs,lionell/university-labs,lionell/laboratories,lionell/university-labs,lionell/labs,lionell/labs,lionell/labs,lionell/labs,lionell/laboratories,lionell/laboratories,lionell/university-labs,lionell/labs,lionell/labs,lionell/labs,lionell/university-labs,lionell/labs,lionell/labs,lionell/labs