Update README.md

README.md

@@ -30,5 +30,20 @@ data
 - **case_name.v**: Synthesized netlist files for the case.
 - **constraint.sdc**: Timing constraint files for the case.
 
+**Download Using Croissant Format**
 
+You only need to download the following files first:
+
+- [`download_dataset.py`](https://huggingface.co/datasets/MIRA-Lab/ChiPBench-D/blob/main/download_dataset.py)
+- [`chipbench_meta_data.json`](https://huggingface.co/datasets/MIRA-Lab/ChiPBench-D/blob/main/chipbench_meta_data.json)
+
+Then run the following commands:
+
+```bash
+mkdir ChiPBench-D
+cp download_dataset.py ChiPBench-D/
+cp chipbench_meta_data.json ChiPBench-D/
+cd ChiPBench-D/
+python3 download_dataset.py
+```