fix pfs-simple.bash example
fix pfs-simple.bash example

ShengjieLuo/pachyderm,klucar/pachyderm,alexdebrie/pachyderm,sambooo/pachyderm,sambooo/pachyderm,klucar/pachyderm,alexdebrie/pachyderm,alexdebrie/pachyderm,ShengjieLuo/pachyderm,sambooo/pachyderm,klucar/pachyderm,ShengjieLuo/pachyderm