Update README.md

README.md

@@ -7,7 +7,7 @@ This is a dataset of image generating prompts containing objects and quantifiers
 
 `2 cell phones and 1 oven and 2 remotes`
 
-The objects were a subset of 10 random objects taken from the COCO dataset: https://docs.ultralytics.com/datasets/detect/coco/#dataset-yaml
+The objects were a subset of 10 random objects taken from the COCO dataset of 80-1 (79 classes): https://docs.ultralytics.com/datasets/detect/coco/#dataset-yaml
 
 `mini_prompts.txt` contains the prompts, ~16k strings with 1-3 objects per image, 1-5 instances of the object per image