Add Netlify badge to page layout

Author: apinnick

_layouts/default.html

@@ -40,8 +40,9 @@ <h1><a href="{{ "/" | absolute_url }}">{{ site.title | default: site.github.repo
       {{ content }}
 
       <footer class="site-footer">
+        <span class="site-footer-renderer"><p align="center"><a href="https://www.netlify.com"><img src="https://www.netlify.com/img/global/badges/netlify-light.svg"></a></p></span>
         {% if site.github.is_project_page %}
-          <span class="site-footer-owner"><a href="{{ site.github.repository_url }}">{{ site.github.repository_name }}</a> is maintained by <a href="{{ site.github.owner_url }}">{{ site.github.owner_name }}</a>.</span>
+          <span class="site-footer-owner"><p align="center"><a href="{{ site.github.repository_url }}">{{ site.github.repository_name }}</a> is maintained by <a href="{{ site.github.owner_url }}">{{ site.github.owner_name }}</a>.</p></span>
         {% endif %}
       </footer>
     </main>