[CentOS-docs] Broken wiki

Hi all,

I've made a minor change (changed one CJK character) on 
https://wiki.centos.org/zh-tw/SpecialInterestGroup and 
https://wiki.centos.org/zh/SpecialInterestGroup , and now the whole 
CentOS wiki is broken.  Can someone undo the changes to fix the wiki?

I've maintained the wiki's Chinese translation for 7 years, and this is 
not the first time the same thing has happened to those two pages, and 
only those two pages.  Can someone possibly look into the root cause?

Regards,
Timothy