layouts/blog/summary.html

<article class="blog doc">

    <header aria-label="Blog post">
        <a href="{{ .RelPermalink }}"><h1>{{ .Title }}</h1></a>
        {{ $headers := dict }}
        {{ with os.Getenv "GITHUB_TOKEN" }}
          {{ $headers = dict "Authorization" (printf "Bearer %s" .) }}
        {{ else }}
          {{ $headers = dict "Authorization" (printf "Basic %s" (printf "%s:%s" $.Site.Params.GitHubUsername $.Site.Params.GitHubToken | base64Encode)) }}
        {{ end }}
        <time itemprop="published" datetime="{{ dateFormat "2006-01-02" .PublishDate }}" title="{{ dateFormat "Monday, January 2, 2006" .PublishDate }}">{{ dateFormat "January 2, 2006" .PublishDate }}</time>, by {{ range $idx, $author := .Params.authors }}{{ if gt $idx 0 }}, {{ end }}<span rel="author">{{ (getJSON "https://api.github.com/users/" $author $headers).name }}</span>{{ end }}
    </header>
    <p>{{ .Summary }}</p>
    <p><a class="continue" href="{{ .RelPermalink }}">Continue reading &#10095;</a></p>
    <p>
        {{ if .Params.categories }}
            {{ range .Params.categories }}<a class="category" href="{{ "/categories/" | relURL }}{{ . | urlize }}/">{{ upper . }}</a>{{ end }}
        {{end}}
    </p>

</article>