Updated raster_stats docs with new starspan install procedures.
Updated raster_stats docs with new starspan install procedures.

--HG--
extra : transplant_source : %C2%FEjU%BF%C1%BB%86%0C%25%DE%AB%0B%F2%FC%EA%E9%B3%A3%05

underbluewaters/marinemap,underbluewaters/marinemap,underbluewaters/marinemap