Update glossary.html

Author: mogsie

_layouts/glossary.html

@@ -21,6 +21,7 @@
     <meta name="twitter:data2" value="{{ page.breadcrumbs[0].name }}"/>
     {% endif %}
 
+    <link rel="shortcut icon" type="image/x-icon" href="favicon.ico">
 
     <link rel="canonical" href="https://statecharts.github.io{{ page.url }}">
     <link rel="stylesheet" type="text/css" media="screen" href="{{ '/assets/css/style.css?v=' | append: site.github.build_revision | relative_url }}">