refactor

cmd/jj-test/main.go

···
+package main
+
+import (
+	"jj-test/pkg/printer"
+)
+
+func main() {
+	printer.Print("Hello JJ!")
+}

main.go

···
-package main
-
-import "fmt"
-
-func main() {
-	fmt.Println("Hello JJ")
-
-	fmt.Println("Hello from 2nd commit")
-}

pkg/printer/main.go

···
+package printer
+
+import "fmt"
+
+func Print(input string) {
+	fmt.Println(input)
+}