Updated title on HTML page

Author: technige

_layouts/default.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>STEF: Simple Token-Efficient Format</title>
     <link rel="shortcut icon" type="image/x-icon" href="stef.png">
     <link rel="stylesheet" href="{{ "/assets/css/style.css?v=" | append: site.github.build_revision | relative_url }}">
     {% include head-custom.html %}