<div id="aboutme">
    {% if AVATAR %}
        <p>
            <img width="100%" class="img-thumbnail" src="{{ AVATAR }}"/>
        </p>
    {% endif %}
    <p>
        <strong>About {{ AUTHOR }}</strong><br/>
        {{ ABOUT_ME }}
    </p>
</div>
<div id="aboutme">
    {% if AVATAR %}
        <p>
            <img width="100%" class="img-thumbnail" src="{{ SITEURL }}/{{ AVATAR }}"/>
        </p>
    {% endif %}
    <p>
        <strong>About {{ AUTHOR }}</strong><br/>
        {{ ABOUT_ME }}
    </p>
</div>
Fix avatar source URL for subpages in pelican-bootstrap3
Fix avatar source URL for subpages in pelican-bootstrap3

When going to a subpage, such as a category page, my avatar image was not
being displayed when using the suggested format 'images/profile.png' from
the readme. The URL turned into 'category/images/profile.png' which doesn't
exist.

Include the site URL so that the image appears on all pages. This looked
like the convention used in other places like favicon.

Cherry picked from commit
getpelican/pelican-themes@f7fc22f8d44ac5f4ecfa722f24ce1810a06b9554.
