add a reference to the favicon.ico

layouts/partials/head.html

@@ -22,6 +22,12 @@
 <link rel="preload" href="/fonts/SourceSerifPro-Regular.ttf" as="font" type="font/ttf" crossorigin="anonymous">
 <link rel="preload" href="/fonts/SourceSansPro-Regular.ttf" as="font" type="font/ttf" crossorigin="anonymous">
 
+<!--
+  -- Add a reference to the favicon.ico.
+  -- The file needs to be added in the "static" directory.
+  -->
+<link rel="icon" type="image/x-icon" href="/favicon.ico">
+
 <!--
   -- Ensure the <meta name=description> tag is never empty since it is used
   -- in the SEO score.