refactor(blog_post): renamed to article to reflect direction

MR !7

theme-overrides/partials/article_social.html

@@ -0,0 +1,17 @@
+{% if config.extra.social %}
+    {% set ns = namespace() %}
+    {% for social in config.extra.social %}
+      {% set title = social.name %}
+      {% if not title and "//" in social.link %}
+        {% set _,url = social.link.split("//") %}
+        {% set title = url.split("/")[0] %}
+      {% endif %}
+      {% if ns.line_break is defined %}
+        {{ ns.line_break }}
+      {% endif %}
+      <a href="{{ social.link }}" target="_blank" rel="noopener" title="{{ title | e }}" class="twemoji">
+          {% include ".icons/" ~ social.icon ~ ".svg" %}
+      </a>
+      {% set ns.line_break = " · " %}
+    {% endfor %}
+{% endif %}