trying to fix open graph problem

_includes/_open-graph.html

@@ -15,7 +15,7 @@
 <meta property="og:type" content="article">
 <meta property="og:title" content="{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}">
 {% if page.excerpt %}<meta property="og:description" content="{{ page.excerpt | strip_html }}">{% endif %}
-<meta property="og:url" content="{{ page.url | replace:'index.html','' | prepend: site.url }}">
+<meta property="og:url" content="https://joemorgan.github.io/devopsfortherestofus">
 <meta property="og:site_name" content="{{ site.title }}">
 {% if page.image.thumb %}
 <meta property="og:image" content="{{ site.url }}/images/{{ page.image.thumb }}">