_includes/post.liquid

<!DOCTYPE html>
<html>
  <head>
    {% include "_head.liquid" %}
  </head>
<body data-route={{ page.data.route }}>
  {% include "_menu.liquid" %}
  <main>
    <article>
      <h1>{{ page.title }}</h1>
      {% assign reading_wpm = 200 %} 
      {% assign word_count = page.content | split: " " | size %}
      {% assign reading_time = word_count | divided_by: 200 %}
      {% case reading_time %}
        {% when 0 %}
          {% assign phrase = "less than a minute." %}
        {% when 1 %}
          {% assign phrase = "about a minute." %}
				{% else %}								
          {% assign phrase = " minutes." | prepend: reading_time %}
    	{% endcase %} 

			<time pubdate="pubdate">{{ page.published_date | date: "%b %d, %Y" }} - Reading time: {{ phrase }}</time><br />
      
      {{ page.content }}
    </article>
    <br /><br />
    <a href="https://twitter.com/share" class="twitter-share-button" data-show-count="false">Tweet</a><script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>
  </main>
  {% include "_footer.liquid" %}
</body>
</html>