Update CREDITS (python#12018)

Author: 97littleleaf11

CREDITS

@@ -11,15 +11,18 @@ Dropbox core team:
 
   Jukka Lehtosalo <jukka.lehtosalo@iki.fi>
   Ivan Levkivskyi <levkivskyi@gmail.com>
+  Jared Hance
 
 Non-Dropbox core team members:
 
   Ethan Smith
   Guido van Rossum <guido@python.org>
-  Jelle Zijlstra
+  Jelle Zijlstra <jelle.zijlstra@gmail.com>
   Michael J. Sullivan <sully@msully.net>
   Shantanu Jain
-  Xuanda Yang
+  Xuanda Yang <th3charlie@gmail.com>
+  Jingchen Ye <97littleleaf11@gmail.com>
+  Nikita Sobolev <mail@sobolevn.me>
 
 Past Dropbox core team members: