Update src/about.py

src/about.py

@@ -88,7 +88,7 @@ SUBMIT_FORM = """
     "OVC": 30.00,
 }
 ```
-Then send a email to xxx@xx.xx with the JSON file attached. We will review your submission and add it to the leaderboard.
+Then send a email to lz123@mail.ustc.edu.cn with the JSON file attached. We will review your submission and add it to the leaderboard.
 """
 
 CITATION_BUTTON_LABEL = "Copy the following snippet to cite MVRB:"