fix: day11.md day11_example1 add missing comma.

fix: day11.md day11_example2 add the last empty string parameter for consistency.

fix:  day11_example2.go add the last empty string parameter to match the documented example.

Days/Go/day11_example2.go

@@ -6,6 +6,6 @@ func main() {
 	var challenge = "#90DaysOfDevOps"
 	const daystotal = 90
 
-	fmt.Println("Welcome to", challenge)
+	fmt.Println("Welcome to", challenge, "")
 	fmt.Println("This is a", daystotal, "challenge")
 }