feat(blog_post): change location of updated date to be in the social metadata.

Requires the git_revision_date_localized plugin for it to function.

MR !2

theme-overrides/blog_post.html

@@ -8,10 +8,4 @@
   {% include "partials/blog_metadata.html" %}
   <hr>
   {{ page.content }}
-{% if page and page.meta and (
-  page.meta.git_revision_date_localized or
-  page.meta.revision_date
-) %}
-  {% include "partials/source-file.html" %}
-{% endif %}
 {% endblock %}

theme-overrides/partials/blog_metadata.html

@@ -17,6 +17,7 @@
         {% include ".icons/octicons/calendar-24.svg" %}
       </span>
       {{ page.meta.date.strftime("%Y-%m-%d") }} ·
+      {% if page.meta.git_revision_date_localized %}Updated {{ page.meta.git_revision_date_localized.replace("\n", "").replace("\r", "") }} <br>{% endif %}
       <span class="twemoji">
         {% include ".icons/octicons/clock-24.svg" %}
       </span>