Fix tags in posts, and image sizing

src/_includes/post.njk

@@ -9,11 +9,12 @@ includePrism: true
         <div class="e-content stack-md">
         {{ content | safe }}
         </div>
-        {% if tags | length %}
+        {% set filteredTags = tags | except("posts") %}
+        {% if filteredTags | length %}
         <section>
             <h2>Tags:</h2>
             <ul role="list">
-                {% for tag in tags %}
+                {% for tag in filteredTags %}
                     <li><a class="p-category" href="/post/tag/{{ tag }}" rel="tag">#{{ tag }}</a></li>
                 {% endfor %}
             </ul>