Update README.md

README.md

@@ -15,7 +15,7 @@ curl -X POST http://localhost:5003/band_statistics \
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-The polygon definition is made of several points coordinates, as in the case of polygon objects from shapefiles stored in databases. Polygon and COG rasters must share the same coordinate system, which in this case is lat and lon.
+The polygon definition is made of several points coordinates, as in the case of polygon objects from shapefiles stored in databases. Polygon and COG rasters must share the same coordinate system.
 
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 ## Specifications