antora-ui-hop/src/partials/head-meta.hbs

<meta property="og:title" content="{{{detag (or page.title defaultPageTitle)}}}{{#if site.title}} :: {{site.title}}{{/if}}">
{{#if page.description}}
<meta property="og:description" content="{{page.description}}">
{{else}}
<meta property="og:description" content="Apache Hop - Hop Orchestration Platform">
{{/if}}
<meta property="og:type" content="article">
<meta property="og:url" content="{{page.canonicalUrl}}">
<meta property="og:image" content="https://hop.apache.org/img/hop-logo.png">