Jekyll Metadata Open Graph by: https://github.com/mmistakes/hpstr-jekyll-theme & https://github.com/willianjusten/cards-jekyll-template

jekyll-metadata-open-graph.html

<!-- https://github.com/mmistakes/hpstr-jekyll-theme -->
<meta property="og:locale" content="es_ES">
<meta property="og:type" content="article">
<meta property="og:title" content="{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}">
<meta property="og:description" content="{% if page.description %}{{ page.description }}{% else %}{{ site.description }}{% endif %}">
<meta property="og:site_name" content="{{ site.title }}">

<!-- https://github.com/willianjusten/cards-jekyll-template -->
<meta property="og:url" content="{{ page.url | replace:'index.html','' | prepend: site.baseurl | prepend: site.url }}">
<!-- 320 x 168 -->
<meta property="og:image" content="{{ "/assets/images/og-image.png" | prepend: site.baseurl }}">