added check command to help
added check command to help

ausonweng/csvfix,mattgascoigne/csvfix,ausonweng/csvfix,jheusser/csvfix,mcenirm/csvfix,mattgascoigne/csvfix,ausonweng/csvfix,mcenirm/csvfix,jheusser/csvfix,mattgascoigne/csvfix,jheusser/csvfix,mcenirm/csvfix