feat(website): add lang attribute to declare language

Rotzbua · Rotzbua · commit da6d639294ab · 2024-06-18T00:59:00.000+02:00
diff --git a/website/index.html b/website/index.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
     <head>
         <meta charset="UTF-8">
         <title>DOMPurify 3.1.5 "Crowbar"</title>
