fix(curriculum): Consolidated comments for JavaScript Algorithms and Data Structures challenges - part 2 of 4 (#38259)

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/debugging/catch-off-by-one-errors-when-using-indexing.english.md

@@ -61,9 +61,9 @@ tests:
 function countToFive() {
   let firstFive = "12345";
   let len = firstFive.length;
-  // Fix the line below
+  // Only change code below this line
   for (let i = 1; i <= len; i++) {
-  // Do not alter code below this line
+  // Only change code above this line
     console.log(firstFive[i]);
   }
 }
@@ -84,9 +84,9 @@ countToFive();
 function countToFive() {
  let firstFive = "12345";
  let len = firstFive.length;
- // Fix the line below
+ // Only change code below this line
  for (let i = 0; i < len; i++) {
- // Do not alter code below this line
+ // Only change code above this line
    console.log(firstFive[i]);
  }
 }