Update CONTRIBUTING.md
Update CONTRIBUTING.md
OpenCollabZA/sakai,willkara/sakai,ouit0408/sakai,frasese/sakai,OpenCollabZA/sakai,Fudan-University/sakai,willkara/sakai,ouit0408/sakai,ouit0408/sakai,Fudan-University/sakai,OpenCollabZA/sakai,Fudan-University/sakai,ouit0408/sakai,willkara/sakai,Fudan-University/sakai,frasese/sakai,Fudan-University/sakai,Fudan-University/sakai,OpenCollabZA/sakai,frasese/sakai,frasese/sakai,willkara/sakai,OpenCollabZA/sakai,ouit0408/sakai,ouit0408/sakai,willkara/sakai,Fudan-University/sakai,OpenCollabZA/sakai,frasese/sakai,frasese/sakai,OpenCollabZA/sakai,ouit0408/sakai,frasese/sakai,willkara/sakai,Fudan-University/sakai,frasese/sakai,OpenCollabZA/sakai,willkara/sakai,ouit0408/sakai,willkara/sakai