fix contributor link & add poi international support group link
fix contributor link & add poi international support group link

poooi/poi,yudachi/poi,syncsyncsynchalt/poi,yudachi/poi,syncsyncsynchalt/poi,PHELiOX/poi,poooi/poi,PHELiOX/poi,gnattu/poi,syncsyncsynchalt/poi,poooi/poi,syncsyncsynchalt/poi,poooi/poi,yudachi/poi,gnattu/poi