Merge pull request #7439 from erictleung/fix/pairwise-code-tags

Add code tags and fix wording in Pairwise

seed/challenges/01-front-end-development-certification/advanced-bonfires.json

@@ -400,9 +400,9 @@
       "id": "a3f503de51cfab748ff001aa",
       "title": "Pairwise",
       "description": [
-        "Return the sum of all indices of elements of 'arr' that can be paired with one other element to form a sum that equals the value in the second argument 'arg'. If multiple sums are possible, return the smallest sum. Once an element has been used, it cannot be reused to pair with another.",
-        "For example, pairwise([1, 4, 2, 3, 0, 5], 7) should return 11 because 4, 2, 3 and 5 can be paired with each other to equal 7 and their indices (1, 2, 3, and 5) sum to 11.",
-        "pairwise([1, 3, 2, 4], 4) would only equal 1, because only the first two elements can be paired to equal 4, and the first element has an index of 0!",
+        "Return the sum of all element indices of array <code>arr</code> that can be paired with one other element to form a sum that equals the value in the second argument <code>arg</code>. If multiple sums are possible, return the smallest sum. Once an element has been used, it cannot be reused to pair with another.",
+        "For example, <code>pairwise([1, 4, 2, 3, 0, 5], 7)</code> should return <code>11</code> because 4, 2, 3 and 5 can be paired with each other to equal 7 and their indices (1, 2, 3, and 5) sum to 11.",
+        "<code>pairwise([1, 3, 2, 4], 4)</code> would only return <code>1</code>, because only the first two elements can be paired to equal 4, and the first element has an index of 0!",
         "Remember to use <a href='//github.com/FreeCodeCamp/freecodecamp/wiki/How-to-get-help-when-you-get-stuck' target='_blank'>Read-Search-Ask</a> if you get stuck. Try to pair program. Write your own code."
       ],
       "challengeSeed": [