fix: polish footer wording

Author: indradhanush

index.html

@@ -969,8 +969,8 @@ <h2>Travel windows</h2>
       </main>
 
       <footer>
-        <span>According to official guidance, the days of departure or arrival are not counted as an absence.</span>
-        <span class="footer-credit">made with ❤️ by Indradhanush Gupta</span>
+        <span>According to the official guidance, the days of departure or arrival are not counted as an absence.</span>
+        <span class="footer-credit">Made with ❤️ by Indradhanush Gupta</span>
       </footer>
     </div>