Fix whitespace problems

templates/blog/author_media.html

@@ -21,9 +21,8 @@
   <ul class="media-content is-align-self-center">
     <div class="title is-5">
 {% for author in post.authors -%}
-      <span class="is-text-nowrap">{{ authors_data[author].display_name }}</span>{% if not loop.last %},{% endif %}
+      <span class="is-text-nowrap">{{ authors_data[author].display_name }}</span>{% if not loop.last %}, {% endif %}
 {% endfor %}
     </div>
   </ul>
 </div>
-

templates/blog/card.html

-          <div class="card is-flex is-flex-direction-column is-fullheight is-justify-content-space-between ">
+          <div class="card is-flex is-flex-direction-column is-fullheight is-justify-content-space-between">
             <div class="card-image">
               <a href="{{ post.permalink }}">
                 <figure class="image is-4by3">