Updated the readme to include the GDAL dependency, and add the github link
Updated the readme to include the GDAL dependency, and add the github link

serge-gaia/biosys,ropable/biosys,parksandwildlife/biosys,ropable/biosys,parksandwildlife/biosys,parksandwildlife/biosys,ropable/biosys,gaiaresources/biosys,gaiaresources/biosys,gaiaresources/biosys,serge-gaia/biosys,serge-gaia/biosys