Datasets doc update.
Datasets doc update.

perrygeo/rasterio,perrygeo/rasterio,youngpm/rasterio,youngpm/rasterio,youngpm/rasterio,clembou/rasterio,sgillies/rasterio,kapadia/rasterio,brendan-ward/rasterio,clembou/rasterio,johanvdw/rasterio,kapadia/rasterio,snorfalorpagus/rasterio,johanvdw/rasterio,clembou/rasterio,njwilson23/rasterio,brendan-ward/rasterio,kapadia/rasterio,perrygeo/rasterio,brendan-ward/rasterio,johanvdw/rasterio,njwilson23/rasterio,njwilson23/rasterio