primary-navigation.html

<nav class="nhsuk-header__navigation" aria-label="Menu">
  <div class="nhsuk-header__navigation-container nhsuk-width-container">
    <ul class="nhsuk-header__navigation-list">

      {% for p in site.data.primary-navigation -%}
      {% assign is_current = false %}
      {% if page.url == p.link or page.url contains p.link and p.link != '/' %}
      {% assign is_current = true %}
      {% endif %}
      <li class="nhsuk-header__navigation-item">
        <a class="nhsuk-header__navigation-link" href="{{ site.baseurl | append: p.link | xml_escape }}" {% if
          is_current %} aria-current="page" {% endif %}>{{ p.title }}</a>
      </li>
      {% endfor -%}

      <li class="nhsuk-header__menu" hidden>
        <button class="nhsuk-header__menu-toggle nhsuk-header__navigation-link" id="toggle-menu" aria-expanded="false">
          <span class="nhsuk-u-visually-hidden">Browse </span>More
        </button>
      </li>

    </ul>
  </div>
</nav>