hugo-theme-readable/layouts/partials/metadata.html

{{ $dateTime := .PublishDate.Format "2006-01-02" }}
{{ $lastmodTime := .Lastmod.Format "2006-01-02" }}
{{ $dateFormat := .Site.Params.dateFormat | default "Jan 2, 2006" }}
<i data-feather="calendar"></i>
{{ if .PublishDate }}
{{ if and (ne $lastmodTime $dateTime) (gt .Lastmod .Date) }}
  <time datetime="{{ $lastmodTime }}">{{ .Lastmod.Format $dateFormat }}</time>
  (first posted <time datetime="{{ $dateTime }}">{{ .PublishDate.Format $dateFormat }}</time>)
{{ else }}
  <time datetime="{{ $dateTime }}">{{ .PublishDate.Format $dateFormat }}</time>
{{ end }}
{{ end }}
{{ with .Params.tags }}
<i data-feather="tag"></i>
{{ range . }}
{{ $href := print "/tags/" (urlize .) }}
<a class="btn btn-sm btn-outline-dark tag-btn" href="{{ $href }}">{{ . }}</a>
{{ end }}
{{ end }}