Add keywords, summary, and media params to iTunes RSS

Author: yasulab

app/views/podcasts/feed.rss.builder

@@ -11,7 +11,19 @@ xml.rss :version => "2.0",
     xml.copyright   @copyright
     xml.language    "ja"
 
+    xml.atom :link, :href => "http://dojocast.superfeedr.com/",
+                    :rel  => "hub"
+    xml.atom :link, :href => "https://coderdojo.jp/podcasts.rss",
+                    :rel  => "self",
+                    :type => "application/rss+xml"
+    xml.media :thumbnail, :url => "https://coderdojo.jp/img/logo.png"
+    xml.media :keywords, "programming,education,opensource,community,coderdojo,software,development"
+    xml.media :category, "Technology", :scheme => "http://www.itunes.com/dtds/podcast-1.0.dtd"
+
     xml.itunes :author,   @author
+    xml.itunes :keywords, "programming,education,opensource,community,coderdojo,software,development"
+    xml.itunes :subtitle, @description
+    xml.itunes :summary,  "CoderDojo コミュニティに関わる方々をハイライトする教育系ポッドキャストです。"
     xml.itunes :image,    :href => @art_work_url
     xml.itunes :explicit, "clean"
     xml.itunes :owner do