DOC: Update install instructions for supported python versions and dependencies
DOC: Update install instructions for supported python versions and dependencies

ozak/geopandas,perrygeo/geopandas,IamJeffG/geopandas,snario/geopandas,jdmcbr/geopandas,jorisvandenbossche/geopandas,geopandas/geopandas,geopandas/geopandas,scw/geopandas,geopandas/geopandas,kwinkunks/geopandas,koldunovn/geopandas,micahcochran/geopandas,micahcochran/geopandas,maxalbert/geopandas,ozak/geopandas,urschrei/geopandas,fonnesbeck/geopandas,jorisvandenbossche/geopandas,jdmcbr/geopandas,jorisvandenbossche/geopandas