<aside class=“col-md-3 col-sm-3 sidebar”>

<ul class="sidenav dropable sticky sidebar-doc-syph">
    <li>Documentation</li>
    <li>
        <a {% if page.menu == "m1"%}class="active"{% endif %} href="#">Getting started</a>
        <ul>
            {% for node in site.pages %}
                {% if node.menu == "m1" %}
                                    {% if page.url != '/404.html' %}
                    <li>
                        <a href="{{ node.url | prepend: site.baseurl }}" {% if page.url == node.url %}class="active"{% endif %}>{{ node.title }}</a>
                    </li>
                                    {% endif %}
                {% endif %}
            {% endfor %}
        </ul>
    </li>
</ul>

</aside>