Merge pull request #490 from 01-edu/printnbr-newline

PrintNbr newline

subjects/printnbr.en.md

@@ -21,12 +21,15 @@ Here is a possible program to test your function :
 ```go
 package main
 
-import piscine ".."
-
+import (
+	piscine ".."
+	"github.com/01-edu/z01"
+)
 func main() {
 	piscine.PrintNbr(-123)
 	piscine.PrintNbr(0)
 	piscine.PrintNbr(123)
+	z01.PrintRune('\n')
 }
 ```