Update README.md

README.md

@@ -53,7 +53,7 @@ task_ids:
 - **Homepage:** <https://terryqj0107.github.io/RiSAWOZ_webpage>
 - **Repository:** <https://github.com/terryqj0107/RiSAWOZ>
 - **Paper:** <https://aclanthology.org/2020.emnlp-main.67.pdf>
-- **Point of Contact:** Deyi Xiong (dyxiong@tju.edu.cn)
+- **Point of Contact:** Deyi Xiong (dyxiong at tju dot edu dot cn)
 
 ### Dataset Summary