Merge pull request rhazdon#123 from undergroundwires/prioritize-descr…

…iption-over.summary

 [SEO Optimization] Prioritize Description, Summary as fallback

layouts/partials/head.html

@@ -2,7 +2,7 @@
 <meta http-equiv="X-UA-Compatible" content="ie=edge">
 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 <meta name="author" content="{{ if .Params.author }}{{ .Params.author }}{{ else }}{{ range .Site.Author }}{{ . }} {{ end }}{{ end }}">
-<meta name="description" content="{{ if .IsHome }}{{ .Site.Params.homeSubtitle }}{{ else }}{{ .Summary | plainify }}{{ end }}" />
+<meta name="description" content="{{ if .IsHome }}{{ .Site.Params.homeSubtitle }}{{ else }}{{ .Description | default ( .Summary | plainify ) }}{{ end }}" />
 <meta name="keywords" content="{{ .Site.Params.keywords }}{{ if .Params.tags }}{{ range .Params.tags }}, {{ . }}{{ end }}{{ end }}" />
 <meta name="robots" content="noodp" />
 <meta name="theme-color" content="{{ .Site.Params.themeColor }}" />