Update README.md

Added licensing information

README.md

@@ -36,4 +36,41 @@ configs:
   data_files:
   - split: train
     path: data/train-*
+license: cc-by-sa-4.0
 ---
+
+
+This dataset is created by converting the validation set of the original Spider dataset into audios. [Spider](https://huggingface.co/datasets/xlangai/spider) dataset is licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/legalcode).
+
+```
+@inproceedings{yu-etal-2018-spider,
+    title = "{S}pider: A Large-Scale Human-Labeled Dataset for Complex and Cross-Domain Semantic Parsing and Text-to-{SQL} Task",
+    author = "Yu, Tao  and
+      Zhang, Rui  and
+      Yang, Kai  and
+      Yasunaga, Michihiro  and
+      Wang, Dongxu  and
+      Li, Zifan  and
+      Ma, James  and
+      Li, Irene  and
+      Yao, Qingning  and
+      Roman, Shanelle  and
+      Zhang, Zilin  and
+      Radev, Dragomir",
+    editor = "Riloff, Ellen  and
+      Chiang, David  and
+      Hockenmaier, Julia  and
+      Tsujii, Jun{'}ichi",
+    booktitle = "Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing",
+    month = oct # "-" # nov,
+    year = "2018",
+    address = "Brussels, Belgium",
+    publisher = "Association for Computational Linguistics",
+    url = "https://aclanthology.org/D18-1425",
+    doi = "10.18653/v1/D18-1425",
+    pages = "3911--3921",
+    archivePrefix={arXiv},
+    eprint={1809.08887},
+    primaryClass={cs.CL},
+}
+```