Add Sun Ju to UMN (#6320)

use a separated PR in case cannot pass the validation

Author: chenzhutian

csrankings-j.csv

@@ -2149,6 +2149,7 @@ Jozef Pieprzyk,IPI PAN,https://ipipan.waw.pl/instytut/pracownicy/jozef-pieprzyk,
 József Békési,University of Szeged,http://www.jgypk.hu/~bekesi,NOSCHOLARPAGE
 Jozsef Csicsvari,IST Austria,https://ist.ac.at/research/research-groups/csicsvari-group,NOSCHOLARPAGE
 Ju Fan,Renmin University of China,http://iir.ruc.edu.cn/~fanj,nl8dmycAAAAJ
+Ju Sun,University of Minnesota,https://sunju.org,V6FaD-UAAAAJ
 Ju-yeon Jo,University of Nevada Las Vegas,http://joj5.faculty.unlv.edu,hqccsn8AAAAJ
 Juan A. Botía,University of Murcia,http://webs.um.es/juanbot/miwiki/doku.php,IFiSPE4AAAAJ
 Juan A. Botía Blaya,University of Murcia,http://webs.um.es/juanbot/miwiki/doku.php,IFiSPE4AAAAJ