diff --git a/index.html b/index.html
index 9654470e..16bb6e81 100644
--- a/index.html
+++ b/index.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html class="no-js" lang="">
+<html class="no-js" lang="en">
     <head>
       <meta charset="utf-8">
         <title>React TODO</title>
@@ -9,6 +9,7 @@
         <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
     </head>
     <body>
+        <!-- This will lauch the script index.js file -->
         <script>System.import("src/index.js");</script>
     </body>
 </html>
