Upgrade bootstrap to 3.3.7

Author: Kim Maida

src/index.html

@@ -4,7 +4,7 @@
         <meta charset="utf-8">
         <title>Chuck Norris Quoter</title>
         <script src="Main.js"></script>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
         <link rel="stylesheet" href="styles.css">
     </head>