README: minor amends
README: minor amends

GrumpyPirate/Sphaxify,GrumpyPirate/sphax-patch-refinedstorage,GrumpyPirate/sphax-patch-tubes,GrumpyPirate/Sphaxify,GrumpyPirate/sphax-patch-tubes,GrumpyPirate/sphax-patch-refinedstorage