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

How to add external links to the navigation bar like in grav site?
Thanks in advance!

Okay my issue is resolved

Just FYI, on the site those are just harcoded at the bottom of the partials/navigation.html.twig:

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