Modify _includes/head.html

Add <link> tag for favicon
Change canonical <link> tag to get site URL from page.url Liquid
variable instead of using literal string.

Author: delphidabbler

_includes/head.html

@@ -15,4 +15,5 @@
 <script src="{{ site.data.core.prefix-free-link }}"></script>
 <script src="{{ site.data.core.coockies-link }}"></script>
 <link rel="stylesheet" type="text/css" href="{{ site.data.core.cookie-consent-url }}" />
-<link rel="canonical" href="https://delphidabbler.com{{ page.url | remove: ".html" }}">
+<link rel="canonical" href="{{ site.url }}{{ page.url | remove: ".html" }}">
+<link rel="icon" type="image/x-icon" href="/favicon.ico">