fix: 25-funcs explanations

25-functions/01-basics/bad.go

@@ -11,10 +11,9 @@ import "fmt"
 
 func showN() {
 	if N == 0 {
-		fmt.Println("showN       : N is zero, increment it.")
 		return
 	}
-	fmt.Printf("showN       : N = %d\n", N)
+	fmt.Printf("showN       : N is %d\n", N)
 }
 
 func incrN() {

25-functions/01-basics/main.go

@@ -16,8 +16,8 @@
 // BUT NOT like so:
 //   go run main.go
 //
-// Because, the compiler needs to see global.go too
-// It can't magically find global.go — what you give is what you get.
+// Because, the compiler needs to see bad.go too
+// It can't magically find bad.go — what you give is what you get.
 //
 
 package main