Partially revert "Regenerate 404 and index pages"

Let's see if this fixes tabs

This reverts commit d2ad3b2.

index.html

@@ -4,11 +4,11 @@
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" integrity="sha384-wvfXpqpZZVQGK6TAh5PVlGOfQNHSoD2xbE+QkPxCAFlNEevoEH3Sl0sibVcOQVnN" crossorigin="anonymous">
-<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
+<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" >
+<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" >
 <link rel="stylesheet" type="text/css" href="./assets/style.css" >
-<script async src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
-<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
+<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
+<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
 
 <link rel="icon" href="./assets/favicon.svg" type="image/svg">
 <link rel="shortcut icon" href="./assets/favicon.ico" type="image/x-icon">