feat(opengraph): update the partial (#819)

* chore: update opengraph partial

* docs: improve Open Grapth section

Author: ldez

exampleSite/content/docs/guide/configuration.md

@@ -456,19 +456,41 @@ The llms.txt file is automatically generated from your content structure and mak
 
 ### Open Graph
 
-To add [Open Graph](https://ogp.me/) metadata to a page, add values in the frontmatter params.
+To add [Open Graph](https://ogp.me/) metadata, you can:
+- add values in the front-matter params of a page
+- or add values in the Hugo configuration file
 
 As a page can have multiple `image` and `video` tags, place their values in an array.
 Other Open Graph properties can have only one value.
-For example, this page has an `og:image` tag (which configures an image to preview on social shares) and an `og:audio` tag.
 
-```yaml {filename="content/docs/guide/configuration.md"}
-title: "Configuration"
+{{< tabs items="Page Level, Global Level" >}}
+{{< tab >}}
+
+```md {filename="mypage.md"}
+---
+title: "My Page"
+params:
+  images:
+    - "/images/image01.jpg"
+  audio: "podcast02.mp3"
+  videos:
+    - "video01.mp4"
+---
+
+Page content.
+```
+{{< /tab >}}
+{{< tab >}}
+```yaml {filename="hugo.yaml"}
 params:
   images:
-    - "/img/config-image.jpg"
-  audio: "config-talk.mp3"
+    - "/images/image01.jpg"
+  audio: "podcast02.mp3"
+  videos:
+    - "video01.mp4"
 ```
+{{< /tab >}}
+{{< /tabs >}}
 
 ### Banner
 

layouts/_partials/opengraph.html

@@ -1,31 +1,86 @@
-{{/* From https://github.com/gohugoio/gohugoioTheme/blob/master/layouts/partials/opengraph/opengraph.html */}}
+{{/* Adapted from https://github.com/gohugoio/hugo/blob/v0.149.0/docs/layouts/_partials/opengraph/opengraph.html */}}
 
-<meta property="og:title" content="{{ .Title }}" />
-<meta property="og:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}" />
-<meta property="og:type" content="{{ if .IsPage }}article{{ else }}website{{ end }}" />
-<meta property="og:url" content="{{ .Permalink }}" />
+<meta property="og:title" content="{{ .Title }}">
+<meta
+  property="og:description"
+  content="{{ with .Description }}
+    {{ . }}
+  {{ else }}
+    {{ if .IsPage }}
+      {{ .Summary }}
+    {{ else }}
+      {{ with .Site.Params.description }}{{ . }}{{ end }}
+    {{ end }}
+  {{ end }}">
+<meta
+  property="og:type"
+  content="{{ if .IsPage }}
+    article
+  {{ else }}
+    website
+  {{ end }}">
+<meta property="og:url" content="{{ .Permalink }}">
 
 {{- with $.Params.images -}}
-{{- range first 6 . }}<meta property="og:image" content="{{ . | absURL }}" />{{ end -}}
+{{- range first 6 . }}
+<meta property="og:image" content="{{ . | absURL }}">
+{{ end -}}
 {{- else -}}
 {{- $featured := "" }}
 {{- with $featured -}}
-<meta property="og:image" content="{{ $featured.Permalink }}"/>
+<meta property="og:image" content="{{ $featured.Permalink }}">
 {{- else -}}
-{{- with $.Site.Params.images }}<meta property="og:image" content="{{ index . 0 | absURL }}"/>{{ end -}}
+{{- with $.Site.Params.images }}
+<meta property="og:image" content="{{ index . 0 | absURL }}">
+{{ end -}}
 {{- end -}}
 {{- end -}}
 
 {{- if .IsPage }}
 {{- $iso8601 := "2006-01-02T15:04:05-07:00" -}}
-<meta property="article:section" content="{{ .Section }}" />
-{{ with .PublishDate }}<meta property="article:published_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
-{{ with .Lastmod }}<meta property="article:modified_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
+<meta property="article:section" content="{{ .Section }}">
+{{ with .PublishDate }}
+<meta
+  property="article:published_time"
+  {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }}>
+{{ end }}
+{{ with .Lastmod }}
+<meta
+  property="article:modified_time"
+  {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }}>
+{{ end }}
 {{- end -}}
 
-{{- with .Params.audio }}<meta property="og:audio" content="{{ . }}" />{{ end }}
-{{- with .Params.locale }}<meta property="og:locale" content="{{ . }}" />{{ end }}
-{{- with .Site.Params.title }}<meta property="og:site_name" content="{{ . }}" />{{ end }}
-{{- with .Params.videos }}{{- range . }}
-<meta property="og:video" content="{{ . | absURL }}" />
-{{ end }}{{ end }}
+{{- with .Params.audio }}<meta property="og:audio" content="{{ . }}">{{ end }}
+{{- with .Params.locale }}
+<meta property="og:locale" content="{{ . }}">
+{{ end }}
+{{- with .Site.Params.title }}
+<meta property="og:site_name" content="{{ . }}">
+{{ end }}
+{{- with .Params.videos }}
+{{- range . }}
+<meta property="og:video" content="{{ . | absURL }}">
+{{ end }}
+
+{{ end }}
+
+{{- /* If it is part of a series, link to related articles */}}
+{{- $permalink := .Permalink }}
+{{- $siteSeries := .Site.Taxonomies.series }}
+{{ with .Params.series }}
+{{- range $name := . }}
+{{- $series := index $siteSeries ($name | urlize) }}
+{{- range $page := first 6 $series.Pages }}
+{{- if ne $page.Permalink $permalink }}
+<meta property="og:see_also" content="{{ $page.Permalink }}">
+{{ end }}
+{{- end }}
+{{ end }}
+
+{{ end }}
+
+{{- /* Facebook Page Admin ID for Domain Insights */}}
+{{- with site.Params.social.facebook_admin }}
+<meta property="fb:admins" content="{{ . }}">
+{{ end }}