DOC: add numpydoc to doc build environment
DOC: add numpydoc to doc build environment
jorisvandenbossche/geopandas,geopandas/geopandas,jdmcbr/geopandas,jdmcbr/geopandas,micahcochran/geopandas,ozak/geopandas,jorisvandenbossche/geopandas,micahcochran/geopandas,jorisvandenbossche/geopandas,ozak/geopandas,geopandas/geopandas,geopandas/geopandas