Update README.md

README.md

@@ -34,10 +34,10 @@ Interface scripts are available at
 ```python
 import geopandas as gpd
 
-gdf_pq = gpd.read_parquet("MT_grid_10km_world.parquet")
+gdf_pq = gpd.read_parquet("MT_grid_10km_global.parquet")
 gdf_pq.head(5)
 
-gdf_gpkg = gpd.read_file("MT_grid_10km_world.gpkg", layer="MT")
+gdf_gpkg = gpd.read_file("MT_grid_10km_global.gpkg", layer="MT")
 gdf_gpkg.head(5)
 
 ```