update contributor

Author: dddg617

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 ## Contributing to GammaGL
 
-Contribution is always welcomed. Please feel free to open an issue or email to tyzhao@bupt.edu.cn.
+Contribution is always welcomed. Please feel free to open an issue or email to yaoqiliu@bupt.edu.cn.
 
 ## Contributors
 
@@ -29,6 +29,7 @@ Contribution is always welcomed. Please feel free to open an issue or email to t
   - Jinyu Yang (Gamma Lab)
   - Xianglong Wang (Gamma Lab)
   - Xingyuan Ji (Gamma Lab)
+  - Yuxin Guo (Gamma Lab)
   - Yuxuan Shan (BUPT)
   - Zeyao Ma (BUPT)
   - Yiming Jia (BUPT)
@@ -46,7 +47,7 @@ Contribution is always welcomed. Please feel free to open an issue or email to t
   - Hai Huang
   - Cheng Yang
   - Xiao Wang
-
+  
 - **Peng Cheng Laboratory**
 
   - Hui Wang