Fixed --docker-password parameter handling and a typo in --docker-username at usage()
Fixed --docker-password parameter handling and a typo in --docker-username at usage()

skynode/eShopOnContainers,dotnet-architecture/eShopOnContainers,skynode/eShopOnContainers,dotnet-architecture/eShopOnContainers,albertodall/eShopOnContainers,dotnet-architecture/eShopOnContainers,skynode/eShopOnContainers,dotnet-architecture/eShopOnContainers,albertodall/eShopOnContainers,albertodall/eShopOnContainers,albertodall/eShopOnContainers,skynode/eShopOnContainers,skynode/eShopOnContainers,dotnet-architecture/eShopOnContainers,albertodall/eShopOnContainers