treehouse/template/components/_tree.hbs

<main class="tree">
    <article>
        {{#if (ne page.tree_path 'index')}}
        <header>
            <h1 class="page-title"><a href="{{ config.site }}/{{ page.tree_path }}">{{ page.title }}</a></h1>
        </header>
        {{/if}}

        {{{~ page.tree }}}
    </article>

    {{> components/_footer.hbs }}
</main>