update ch02-00 close #505

src/ch02-00-guessing-game-tutorial.md

@@ -362,7 +362,7 @@ use rand::Rng;
 fn main() {
     println!("Guess the number!");
 
-    let secret_number = rand::thread_rng().gen_range(1, 101);
+    let secret_number = rand::thread_rng().gen_range(1..101);
 
     println!("The secret number is: {}", secret_number);
 
@@ -370,7 +370,8 @@ fn main() {
 
     let mut guess = String::new();
 
-    io::stdin().read_line(&mut guess)
+    io::stdin()
+        .read_line(&mut guess)
         .expect("Failed to read line");
 
     println!("You guessed: {}", guess);