How to allow Twitter or emailed feedback from Octopress posts

README.md

post.html goes in source/_layouts/post.html and feedback.html goes in source/_includes/post/feedback.html

feedback.html

 • You may 
 {% if site.twitter_user and page.skip_twitter_feedback != true %}
    <script type="text/javascript" src="//platform.twitter.com/widgets.js"></script>
    {% capture tweet_text %}@{{site.twitter_user}}: re: {{site.url}}{{page.url}}{% endcapture %}
  <a href="https://twitter.com/intent/tweet?text={{ tweet_text | uri_escape }}">reply to this post on Twitter</a> or
 {% endif %}
 <a href="mailto:you@domain.com">email the author</a>.

post.html

---
layout: default
navbar: Blog
single: true
---

<div class="row">
  <div class="page-content {% unless page.sidebar == false or site.post_asides == empty and site.default_asides == empty %}col-md-9{% else %}col-md-12{% endunless %}" itemscope itemtype="http://schema.org/Blog">
    <meta itemprop="name" content="{{site.title}}" />
    <meta itemprop="description" content="{{site.description}}" />
    <meta itemprop="url" content="{{site.url}}" />
    <article class="hentry" role="article" itemprop="blogPost" itemscope itemtype="http://schema.org/BlogPosting">
      {% include article.html %}
      <footer>
        <p class="meta text-muted">
          {% include post/author.html %}
          {% include post/date.html %}{% if updated %}{{ updated }}{% else %}{{ time }}{% endif %}
          {% include post/categories.html %}
          {% include post/feedback.html %}
        </p>
        {% unless page.sharing == false %}
          {% include post/sharing.html %}
        {% endunless %}
        {% if page.previous.url or page.next.url %}
          <ul class="meta text-muted pager">
            {% if page.previous.url %}
            <li class="previous"><a href="{{page.previous.url}}" title="Previous Post: {{page.previous.title}}">&laquo; {{page.previous.title}}</a></li>
            {% endif %}
            {% if page.next.url %}
            <li class="next"><a href="{{page.next.url}}" title="Next Post: {{page.next.title}}">{{page.next.title}} &raquo;</a></li>
            {% endif %}
          </ul>
        {% endif %}
      </footer>
    </article>
    
    {% if site.disqus_short_name and page.comments == true %}
      <section>
        <h1>Comments</h1>
        <div id="disqus_thread" aria-live="polite">{% include post/disqus_thread.html %}</div>
      </section>
    {% endif %}
  </div>

  {% unless page.sidebar == false or site.post_asides == empty and site.default_asides == empty %}
  <aside class="sidebar col-md-3">
    {% if site.post_asides.size %}
      {% include_array post_asides %}
    {% else %}
      {% include_array default_asides %}
    {% endif %}
  </aside>
  {% endunless %}
</div>