Sprint 1 coursework 2.1: change const to let

Author: kohanman

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

@@ -1,4 +1,5 @@
 // trying to create an age variable and then reassign the value by 1
 
-const age = 33;
+let age = 33;
 age = age + 1;
+//age is a constant variable so cannot be reassigned, can use let instead of const to fix this error