add dataset size

README.md

@@ -26,6 +26,7 @@ For more details see the preprocessing script in the transformers repository [he
 The dataset is split in a [train](https://huggingface.co/datasets/codeparrot/codeparrot-clean-train) and [validation](https://huggingface.co/datasets/codeparrot/codeparrot-clean-valid) split used for training and evaluation.
 
 ## Structure
+This dataset has ~50GB of code and 5361373 files.
 ```python
 DatasetDict({
     train: Dataset({