beautiful-jekyll/_includes/footer.html

<footer>
  <div class="container">
    <div class="row">
      <div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
        <ul class="list-inline text-center footer-links">
          {% if site.author.facebook and site.footer-links-active.facebook %}
          <li>
            <a href="https://www.facebook.com/{{ site.author.facebook }}" title="Facebook">
              <span class="fa-stack fa-lg">
                <i class="fa fa-circle fa-stack-2x"></i>
                <i class="fa fa-facebook fa-stack-1x fa-inverse"></i>
              </span>
            </a>
          </li>
          {% endif %}
          {% if site.author.github and site.footer-links-active.github %}
          <li>
            <a href="https://github.com/{{ site.author.github }}" title="GitHub">
              <span class="fa-stack fa-lg">
                <i class="fa fa-circle fa-stack-2x"></i>
                <i class="fa fa-github fa-stack-1x fa-inverse"></i>
              </span>
            </a>
          </li>
          {% endif %}
		  {% if site.author.twitter and site.footer-links-active.twitter %}
          <li>
            <a href="https://twitter.com/{{ site.author.twitter }}" title="Twitter">
              <span class="fa-stack fa-lg">
                <i class="fa fa-circle fa-stack-2x"></i>
                <i class="fa fa-twitter fa-stack-1x fa-inverse"></i>
              </span>
            </a>
          </li>
          {% endif %}
		  {% if site.author.email and site.footer-links-active.email %}
          <li>
            <a href="mailto:{{ site.author.email }}" title="Email me">
              <span class="fa-stack fa-lg">
                <i class="fa fa-circle fa-stack-2x"></i>
                <i class="fa fa-envelope fa-stack-1x fa-inverse"></i>
              </span>
            </a>
          </li>
          {% endif %}
		  {% if site.author.linkedin and site.footer-links-active.linkedin %}
          <li>
            <a href="https://linkedin.com/{{ site.author.linkedin }}" title="LinkedIn">
              <span class="fa-stack fa-lg">
                <i class="fa fa-circle fa-stack-2x"></i>
                <i class="fa fa-linkedin fa-stack-1x fa-inverse"></i>
              </span>
            </a>
          </li>
          {% endif %}
		  {% if site.author.stackoverflow and site.footer-links-active.stackoverflow %}
          <li>
            <a href="https://stackoverflow.com/{{ site.author.stackoverflow }}" title="StackOverflow">
              <span class="fa-stack fa-lg">
                <i class="fa fa-circle fa-stack-2x"></i>
                <i class="fa fa-stack-overflow fa-stack-1x fa-inverse"></i>
              </span>
            </a>
          </li>
          {% endif %}
		  {% if site.footer-links-active.rss %}
		  <li>
			<a href="{{ '/feed.xml' | prepend: site.baseurl }}" title="RSS">
			  <span class="fa-stack fa-lg">
				<i class="fa fa-circle fa-stack-2x"></i>
				<i class="fa fa-rss fa-stack-1x fa-inverse"></i>
			  </span>
			</a>
		  </li>		
          {% endif %}		  
        </ul>
        <p class="copyright text-muted">
		  &copy; {{ site.author.name }}
		  &nbsp;&bull;&nbsp;
		  {{ site.time | date: '%Y' }}
		  
		  {% if site.author.email %}
		  &nbsp;&bull;&nbsp;
		  <a href="mailto:{{ site.author.email }}">{{ site.author.email }}</a>
		  {% endif %}
	    </p>
		<p class="theme-by text-muted">
		  Theme by
		  <a href="http://deanattali.com/beautiful-jekyll/">beautiful-jekyll</a>
		</p>
      </div>
    </div>
  </div>
</footer>