update error

Author: codebyshay

Sprint-1/2-mandatory-errors/1.js

@@ -5,4 +5,4 @@ age = age + 1;
 console.log(age);
 
 // The code above will output 34, because we are reassigning the value of age to be the current value of age plus 1. So, 33 + 1 = 34.
-
+// The error in the code is that it was trying to reassign a value to a variable that was declared with let. This is not allowed in JavaScript.