Updated README to reflect GFVO replacement of GFF30/GVF1O.
Updated README to reflect GFVO replacement of GFF30/GVF1O.

BioInterchange/BioInterchange,BioInterchange/BioInterchange,BioInterchange/BioInterchange,BioInterchange/BioInterchange,BioInterchange/BioInterchange,BioInterchange/BioInterchange