read more link in jekyll blog using liquid

read-more-liquid-post.html

{% capture content_words %}
  {{ post.content | number_of_words }}
{% endcapture %}

{% capture excerpt_words %}
  {{ post.content | truncatewords: 250 | number_of_words }}
{% endcapture %}

{% if content_words != excerpt_words  %}
<p class="right"><a href="{{site.baseurl}}{{ post.url }}">Read more</a></p>
{% endif %}