Fix extensions/intro.html filetransfer link
Fix extensions/intro.html filetransfer link

xuIcream/Smack,ayne/Smack,vanitasvitae/smack-omemo,qingsong-xu/Smack,xuIcream/Smack,vanitasvitae/Smack,vanitasvitae/Smack,andrey42/Smack,vanitasvitae/smack-omemo,kkroid/OnechatSmack,Tibo-lg/Smack,ishan1604/Smack,igniterealtime/Smack,deeringc/Smack,magnetsystems/message-smack,dpr-odoo/Smack,mar-v-in/Smack,Flowdalic/Smack,chuangWu/Smack,u20024804/Smack,xuIcream/Smack,kkroid/OnechatSmack,cjpx00008/Smack,opg7371/Smack,chuangWu/Smack,kkroid/OnechatSmack,lovely3x/Smack,opg7371/Smack,annovanvliet/Smack,unisontech/Smack,andrey42/Smack,igniterealtime/Smack,esl/Smack,opg7371/Smack,esl/Smack,andrey42/Smack,ayne/Smack,annovanvliet/Smack,magnetsystems/message-smack,hy9902/Smack,chuangWu/Smack,Flowdalic/Smack,lovely3x/Smack,Tibo-lg/Smack,mar-v-in/Smack,u20024804/Smack,annovanvliet/Smack,igniterealtime/Smack,cjpx00008/Smack,vanitasvitae/Smack,vanitasvitae/smack-omemo,igorexax3mal/Smack,hy9902/Smack,mar-v-in/Smack,magnetsystems/message-smack,deeringc/Smack,TTalkIM/Smack,igorexax3mal/Smack,unisontech/Smack,esl/Smack,cjpx00008/Smack,TTalkIM/Smack,qingsong-xu/Smack,TTalkIM/Smack,Flowdalic/Smack,lovely3x/Smack,unisontech/Smack,u20024804/Smack,hy9902/Smack,igorexax3mal/Smack,ishan1604/Smack,dpr-odoo/Smack,ayne/Smack,deeringc/Smack,ishan1604/Smack,qingsong-xu/Smack,Tibo-lg/Smack,vito-c/Smack,vito-c/Smack,dpr-odoo/Smack