head, add more tags.

layouts/partials/extend_head.html

@@ -14,6 +14,12 @@
 	<meta name="twitter:description" content="Articles, poetry, eBooks, recipes, more.">
 	<meta name="twitter:image" content="https://hyperling.com/files/media/icons/home.jpg">
 
+	<!-- copied from RVR site -->
+	<meta name="author" content="{{ .Site.Params.Author }}">
+	<meta name="publisher" content="{{ .Site.Params.Publisher }}">
+	<meta name="contact" content="{{ .Site.Params.Email }}">
+	<meta name="data-contact" content="{{ .Site.Params.Email }}">
+
 	<!-- copied from layouts/partials/favicons.html -->
 	<!-- https://favicon.io -->
 	<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">