Adjust archive.org donation link in general.html (#603)

Adjust archive.org donation link due to broken link.

bookmarks/templates/settings/general.html

@@ -99,7 +99,7 @@ <h2>Profile</h2>
             Machine</a>.
             This allows to preserve, and later access the website as it was at the point in time it was bookmarked, in
             case it goes offline or its content is modified.
-            Please consider donating to the <a href="https://archive.org/donate/index.php" target="_blank"
+            Please consider donating to the <a href="https://archive.org/donate" target="_blank"
                                                rel="noopener">Internet Archive</a> if you make use of this feature.
           </div>
         </div>