hugo-code-editor-theme/layouts/partials/menu.html

<nav class="col-md-3">
    <div id="last-posts" class="open">
        <h3 data-open="last-posts">{{ .Site.Title }} - {{ ( index $.Site.Data.translations $.Site.Params.locale ).mostrecentposts }}</h3>
        <ul>
            {{ range last 10 .Site.Pages }}
            <li><a href="{{ .Permalink }}">{{ .Title }}</a></li>
            {{ end }}
        </ul>
    </div>

    <div id="tags" class="open">
        <h3 data-open="tags">{{ ( index $.Site.Data.translations $.Site.Params.locale ).tags }}</h3>
        <ul class="tags">
            {{ range $name, $taxonomy := .Site.Taxonomies.tags }}
            <li><a href="/tags/{{ $name | urlize }}">{{ $name }}</a></li>
            {{ end }}
        </ul>
    </div>

    <div id="categories" class="open">
        <h3 data-open="categories">{{ ( index $.Site.Data.translations $.Site.Params.locale ).categories }}</h3>
        <ul class="categories">
            {{ range $name, $taxonomy := .Site.Taxonomies.categories }}
            <li><a href="/categories/{{ $name | urlize }}">{{ $name }}</a></li>
            {{ end }}
        </ul>
    </div>
</nav>