update dataset namespace

README.md

@@ -23,4 +23,4 @@ The original dataset contains a lot of duplicated and noisy data. Therefore, the
 For more details see the preprocessing script in the transformers repository [here](https://github.com/huggingface/transformers/tree/master/examples/research_projects/codeparrot).
 
 ## Splits
-The dataset is split in a [train](https://huggingface.co/datasets/lvwerra/codeparrot-clean-train) and [validation](https://huggingface.co/datasets/lvwerra/codeparrot-clean-valid) split used for training and evaluation.
+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.