ref: 58a47ccde00e2425364eaa5c2123e0718a2ee3f2
dir: /tpl/tplimpl/embedded/templates/google_news.html/
{{ if .IsPage }}{{ with .Params.news_keywords }}
<meta name="news_keywords" content="{{ range $i, $kw := first 10 . }}{{ if $i }},{{ end }}{{ $kw }}{{ end }}" />
{{ end }}{{ end }}