Adding subcommand usage descriptions
Adding subcommand usage descriptions

SwiftGen/SwiftGen,plivesey/SwiftGen,Dimentar/SwiftGen,AliSoftware/SwiftGen,plivesey/SwiftGen,AliSoftware/SwiftGen,plivesey/SwiftGen,AliSoftware/SwiftGen,stripysock/SwiftGen,Dimentar/SwiftGen,SwiftGen/SwiftGen,stripysock/SwiftGen