Modify Swift badge to display Swift version. [skip ci]
Modify Swift badge to display Swift version. [skip ci]

yoichitgy/Swinject,yoichitgy/Swinject,yoichitgy/Swinject,Swinject/Swinject,Swinject/Swinject,Swinject/Swinject,yoichitgy/Swinject,Swinject/Swinject