Update README.md

README.md

@@ -21,9 +21,10 @@ Details regarding data preparation and usage are given in the [GitHub Repository
 
 ### Dataset Description
 
-The dataset covers the entire state of Berlin and is divided into 1060 tiles of 1 sq. km each. It comprises (a) [Point clouds](Lidar_point_clouds) 
-and (b) [Raster image files providing solar radiation maps generated from the point clouds](solar_radiation_rasters). The details regarding the 
-data preparation can be found in [GitHub Repository](https://github.com/deepankverma/navigating_streetscapes).
+The dataset covers the entire state of Berlin and is divided into 1060 tiles of 1 sq. km each. The tiles are further grouped under
+[9 regions](https://fbinter.stadt-berlin.de/fb/atom/DOP/Blattschnitt2x2km.gif). The dataset comprises (a) [Categorized Point clouds](Lidar_point_clouds) 
+and (b) [Raster image files providing solar radiation maps](solar_radiation_rasters). The details regarding the 
+data preparation can be found in [GitHub Repository](https://github.com/deepankverma/navigating_streetscapes).