Update README.md

README.md

@@ -12,3 +12,23 @@ This is a modification of the original Oxford RobotCar dataset:
 - W. Maddern, G. Pascoe, M. Gadd, D. Barnes, B. Yeomans, and P. Newman, "Real-time Kinematic Ground Truth for the Oxford RobotCar Dataset," *arXiv preprint arXiv:2002.10152*, 2020.
 
 Authorship belongs to Maddern et al. This version is released under the same [Attribution-NonCommercial-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-nc-sa/4.0/) license.
+
+---
+
+# ❗ Please note
+
+**This dataset is currently not compatible with the `datasets` library.**
+The recommended way to download the data is by using the `huggingface_hub` library.
+Example code snippet:
+
+```python
+from pathlib import Path
+from huggingface_hub import snapshot_download
+
+out_dir = Path("/dir/to/save/data")
+out_dir.mkdir(parents=True, exist_ok=True)
+
+snapshot_download(repo_id="OPR-Project/OxfordRobotCar_OpenPlaceRecognition", repo_type="dataset", local_dir=out_dir)
+```
+
+For reading and working with the data, we recommend using the OpenPlaceRecognition library: https://github.com/OPR-Project/OpenPlaceRecognition