fixed console issue (#228)

Author: ShubhamPrasad3012

index.js

@@ -69,7 +69,7 @@ loginBtn.addEventListener('click', () => {
 
 // to show and hide the back-to-top button
 window.addEventListener("scroll", () => {
-    if (window.pageYOffset > 300) { console.log(window.pageYOffset);
+    if (window.pageYOffset > 300) { 
         backToTop.classList.add("active");
     } else {
         backToTop.classList.remove("active");