{% if theme_config.footer.year == "now"|date("Y") %}
    {% set year = "now"|date("Y") %}
{% else %}
    {% set year = theme_config.footer.year ~ "-" ~ "now"|date("y") %}
{% endif %}    
<span class="footer-copyright">&copy; {{ year }}</span>
<span class="footer-link">
    <a href="{{ theme_config.footer.url }}">{{ theme_config.footer.title }}</a>
</span>