Added bullets to contributors
Added bullets to contributors

afalone/mailboxer,jason-wang-0401/mailboxer,shekibobo/mailboxer,cantonyselim/mailboxer,Design-Collective/mailboxer,Groovej/mailboxer,mattherick/mailboxer,roomaroom/mailboxer,netbrick/mailboxer,sai43/mailboxer,untitledstartup/mailboxer,mailboxer/mailboxer,sai43/mailboxer,div/mailboxer,untitledstartup/mailboxer,crowdvn/mailboxer,noafroboy/mailboxer,shekibobo/mailboxer,techstars/mailboxer,t27duck/mailboxer,mattherick/mailboxer,mailboxer/mailboxer,jarkadlec/mailboxer,Design-Collective/mailboxer,modsaid/mailboxer,chepri/mailboxer,Groovej/mailboxer,joshtate04/mailboxer,lacco/mailboxer,jarkadlec/mailboxer,lacco/mailboxer,modsaid/mailboxer,roomaroom/mailboxer,cantonyselim/mailboxer,t27duck/mailboxer,jason-wang-0401/mailboxer,noafroboy/mailboxer,joshtate04/mailboxer,netbrick/mailboxer,chepri/mailboxer,psu-stewardship/mailboxer,WeConnect/mailboxer