{% if site.bitbucket_username %} <a target=“_blank” href=“bitbucket.org/{{site.bitbucket_username}}”>
<i class="fa fa-2x fa-bitbucket"></i>
</a> {% endif %}
{% if site.github_username %} <a target=“_blank” href=“github.com/{{site.github_username}}”>
<i class="fa fa-2x fa-github"></i>
</a> {% endif %}
{% if site.linkedin_username %} <a target=“_blank” href=“www.linkedin.com/in/{{site.linkedin_username}}”>
<i class="fa fa-2x fa-linkedin"></i>
</a> {% endif %}
{% if site.twitter_username %} <a target=“_blank” href=“twitter.com/{{site.twitter_username}}”>
<i class="fa fa-2x fa-twitter"></i>
</a> {% endif %}