fix(curriculum): fixed punctuation (freeCodeCamp#56942)

Author: sophie-wjyang

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-basic-javascript-by-building-a-role-playing-game/62b46e3a8d4be31be5af793d.md

@@ -9,7 +9,7 @@ dashedName: step-16
 
 We have run into a slight problem. You are trying to query your page for a button element, but your `script` tag is in the `head` of your HTML. This means your code runs before the browser has finished reading the HTML, and your `document.querySelector()` will not see the button - because the browser hasn't processed it yet.
 
-To fix this, move your `script` element out of the `head` element, and place it at the end of your `body` element (just before the closing `</body>` tag.)
+To fix this, move your `script` element out of the `head` element, and place it at the end of your `body` element (just before the closing `</body>` tag).
 
 # --hints--
 

curriculum/challenges/english/18-project-euler/project-euler-problems-301-to-400/problem-387-harshad-numbers.md

@@ -10,7 +10,7 @@ dashedName: problem-387-harshad-numbers
 
 A Harshad or Niven number is a number that is divisible by the sum of its digits.
 
-201 is a Harshad number because it is divisible by 3 (the sum of its digits.)
+201 is a Harshad number because it is divisible by 3 (the sum of its digits).
 
 When we truncate the last digit from 201, we get 20, which is a Harshad number.