Update README.md

README.md

@@ -66,11 +66,14 @@ HFA2K -> 2'280 Tiles
 ModernAnimation1080_v3 -> 4'109 Tiles  
 Nomos_Uni -> 2'466 Tiles  
 Nomosv2 -> 5'226 Tiles  
+inaturalist_2019 -> 131'943 Tiles
 
 
-## Filename normalization
+## Files
 
-All these subsets have been filename normalized, meaning 0.png, 1.png, 2.png, and so forth. They then have been merged into the BHI dataset, which folder has been normalized again.  
+Files have been named with '{dataset_name}_{index}.png' so that if one of these used datasets were problematic concerning public access, could still be removed in the future form this dataset.  
+
+(Note to myself: Tiles 'inaturalist_2019_65228.png','inaturalist_2019_54615.png','inaturalist_2019_22816.png' removed because of PNG error when checking with [pngcheck](http://www.libpng.org/pub/png/apps/pngcheck.html))
 
 ## Optimization