Add thumbnails to rss feed

Author: seanyeh

layouts/blog/rss.xml

@@ -14,6 +14,9 @@
                 <pubDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</pubDate>
                 <guid>{{ .Site.Params.canonicalURL }}{{ .RelPermalink }}</guid>
                 <description>{{ .Content | html }}</description>
+                {{ if .Params.meta_image }}
+                    <media:thumbnail url="{{ .Site.Params.canonicalURL }}{{ .RelPermalink }}{{ .Params.meta_image }}" />
+                {{ end }}
                 {{ range $id := .Params.authors }}
                     {{ $author := index $.Site.Data.team.team $id }}
                     {{ if $author }}