How to add links to nav bar(floating Bar)?

<ul class="navigation">
    {% for page in pages.children %}
        {% if page.visible %}
            {% set current_page = (page.active or page.activeChild) ? 'active' : '' %}
            <li class="{{ current_page }}"><a href="{{ page.url }}">{{ page.menu }}</a></li>
        {% endif %}
    {% endfor %}
    <li><a href="http://learn.getgrav.org">Learn</a></li>
    <li><a href="http://twitter.com/getgrav"><i class="fa fa-twitter"></i></a></li>
    <li><a href="https://github.com/getgrav/grav"><i class="fa fa-github"></i></a></li>
    <li><a href="https://gitter.im/getgrav/grav"><i class="fa fa-comments-o"></i></a></li>
</ul>