layouts/blog/post.html

<article class="blog doc">

    <header>
        {{ if .Params.categories }}
        {{ range .Params.categories }}<a class="category"
            href="{{ "/categories/" | relURL }}{{ . | urlize }}/">{{ upper . }}</a>{{ end }}
        {{ end }}
        <h1>{{ .Title }}</h1>
    </header>
    <div class="post">
        <aside>
            <div class="summary">{{ .Params.preview }}</div>
            Posted on <time itemprop="published" datetime="{{ dateFormat "2006-01-02" .PublishDate }}"
                title="{{ dateFormat "Monday, January 2, 2006" .PublishDate }}">{{ dateFormat "January 2, 2006" .PublishDate }}</time>,
            by {{ range $author := .Params.authors }}
            {{ with getJSON "https://api.github.com/users/" $author }}
            <figure>
                <img src="{{ .avatar_url }}" alt="{{ .name }}">
                <figcaption rel="author">{{ .name }}</figcaption>
            </figure>
            {{ end }}
            {{ end }}
            <p>
                {{ if .PrevInSection }}
                <a class="arrow prev" href="{{ .PrevInSection.RelPermalink }}"
                    title="Previous post: {{ .PrevInSection.Title }}">&#10094;</a>
                {{ end }}
                {{ if .NextInSection }}
                <a class="arrow next" href="{{ .NextInSection.RelPermalink }}"
                    title="Next post: {{ .NextInSection.Title }}">&#10095;</a>
                {{ end }}
            </p>
        </aside>
        <div class="post-content">
            {{ $featured := (.Resources.ByType "image").GetMatch "*featured*" }}
            {{ with $featured }}
            {{ if ne $featured.MediaType.SubType "svg" }}
            {{ $featured := .Resize "800x q95 Gaussian" }}
            <img class="featured" alt="Blog post featured image" src="{{ $featured.RelPermalink }}"
                width="{{ $featured.Width }}" height="{{ $featured.Height }}">
            {{ else }}
            <img class="featured" alt="Blog post featured image" src="{{ $featured.RelPermalink }}" width="800">
            {{ end }}
            {{ end }}
            {{ .Content }}
        </div>
    </div>

</article>