Add dataset card

README.md

@@ -69,12 +69,12 @@ for sample in ds:
 ## Citation
 
 ```bibtex
-@misc{niklaus2025finewebedu100bt,
-      title={FineWeb-Edu 100BT},
+@misc{niklaus2026smoldata,
+      title={SmolData},
       author={Joel Niklaus and Hynek Kydl{\'\i}{\v{c}}ek},
       year={2026},
       publisher={Hugging Face},
       journal={Hugging Face repository},
-      howpublished={\url{https://huggingface.co/datasets/HuggingFaceFW/fineweb_edu_100BT}}
+      howpublished={\url{https://huggingface.co/collections/HuggingFaceFW/smol-data}}
 }
 ```