rf-web/_includes/common/navigation.html

<nav>
  <div class="menu">
    {% for item in site.data.menu %}
      {% if item.items %}
        <div class="nav-group">
            <a class="nav-link">{{ item[page.lang].name }}</a>
          {% for sublink in item.items %}
            {% if page.lang == 'en' %}
              <a class="sub-nav-link" href="{{ site.baseurl | append: sublink[page.lang].url }}" style=" color: {{ sublink.colour }}">{{ sublink[page.lang].name }}</a>
            {% else %}
              <a class="sub-nav-link" href="{{ site.baseurl }}/{{ page.lang | append: sublink[page.lang].url }}">{{ sublink[page.lang].name }}</a>
            {% endif %}
          {% endfor %}
        </div>
      {% else %}
        {% if page.lang == 'en' %}
        <div class="nav-group">
          <a class="nav-link" href="{{ site.baseurl | append: item[page.lang].url }}">{{ item[page.lang].name }}</a>
        </div>
        {% else %}
        <div class="nav-group">
          <a class="nav-link" href="{{ site.baseurl }}/{{ page.lang | append: item[page.lang].url }}">{{ item[page.lang].name }}</a>
        </div>
        {% endif %}
      {% endif %}
    {% endfor %}
  {% include common/lang-selector.html en-text="/english" fr-text="/français" %}
  </div>

</nav>