Added dataset license, authors, and cite

README.md

@@ -159,7 +159,10 @@ No annotator identifying details are provided.
 
 ### Dataset Curators
 
-This dataset was initially created by Thang M. Pham, Seunghyun Yoon, Trung Bui, Anh Nguyen, extended from Adobe internship project of Thang carried out at Auburn University.
+This dataset is a joint work between Adobe Research and Auburn University.
+Creators: [Thang M. Pham](https://scholar.google.com/citations?user=eNrX3mYAAAAJ), [David Seunghyun Yoon](https://david-yoon.github.io/), [Trung Bui](https://sites.google.com/site/trungbuistanford/), and [Anh Nguyen](HTTP://https://anhnguyen.me).
+
+Thanks to [@PMThangXAI](https://twitter.com/pmthangxai) for adding this dataset.
 
 ### Licensing Information
 
@@ -167,8 +170,11 @@ This dataset is distributed under [Creative Commons Attribution 4.0 Internationa
 
 ### Citation Information
 
-[More Information Needed]
-
-### Contributions
-
-Thanks to [@ThangPM](https://github.com/ThangPM) for adding this dataset.
+```
+@article{pham2022PiC,
+  title={PiC: A Phrase-in-Context Dataset for Phrase Understanding and Semantic Search},
+  author={Pham, Thang and Yoon, David and Bui, Trung and Nguyen, Anh},
+  journal={arXiv preprint},
+  year={2022}
+}
+```