krancour/functions-post-02.go Secret

## functions-post-02.go
func main() {
	// The type of the greeter variable is the Greeter interface; NOT the
	// EnglishGreeter type that implements it
	var greeter Greeter = &EnglishGreeter{}
	// The next line doesn't care what implementation of Greeter is used
	greeter.SayGreeting()
}
	func main() {
	// The type of the greeter variable is the Greeter interface; NOT the
	// EnglishGreeter type that implements it
	var greeter Greeter = &EnglishGreeter{}
	// The next line doesn't care what implementation of Greeter is used
	greeter.SayGreeting()
	}