Update the code to use a for loop

loops/src/main.rs

@@ -1,10 +1,7 @@
 fn main() {
     let a = [10, 20, 30, 40, 50];
-    let mut index = 0;
 
-    while index < 5 {
+    for element in a {
-        println!("the value is: {}", a[index]);
+        println!("the value is: {element}");
-
-        index += 1;
     }
 }