Add favicons

Author: twilco

_includes/head.html

@@ -8,3 +8,6 @@
 <link rel="stylesheet" href="{{ "/css/main.css" | prepend: site.baseurl }}">
 <link rel="canonical" href="{{ page.url | replace:'index.html','' | prepend: site.baseurl | prepend: site.url }}">
 <link rel="alternate" type="application/rss+xml" title="{{ site.title }}" href="{{ "/feed.xml" | prepend: site.baseurl | prepend: site.url }}" />
+
+<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
+<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">