README fix
README fix

treejames/material-dialogs,afollestad/material-dialogs,greenaddress/material-dialogs,AndyScherzinger/material-dialogs,TouchBoarder/material-dialogs,MaTriXy/material-dialogs,RyanTech/material-dialogs,greenaddress/material-dialogs,gao746700783/material-dialogs,GavinThePacMan/material-dialogs,GavinThePacMan/material-dialogs,RyanTech/material-dialogs,gao746700783/material-dialogs,hister/material-dialogs,treejames/material-dialogs,TouchBoarder/material-dialogs,AndyScherzinger/material-dialogs,TonyTangAndroid/material-dialogs