hugo-theme-relearn/layouts/partials/meta.html

    <meta charset="utf-8">
    {{- $c:=""}}{{/* to avoid that user swiping to the left leaves a gap on the right side, we set minimum-scale, even if not advised to */}}
    <meta name="viewport" content="height=device-height, width=device-width, initial-scale=1.0, minimum-scale=1.0">
    {{- if (ne .Site.Params.disableGeneratorVersion true) }}
        {{- $gen := hugo.Generator }}
        {{- $gen = replaceRE "\\s*/>$" ">" $gen }}
    {{ $gen | safeHTML }}
        {{- $ver := partial "version.txt" }}
        {{- $ver := printf "<meta name=\"generator\" content=\"%s %s\">" "Relearn" $ver }}
    {{ $ver | safeHTML }}
    {{- end }}
    {{- if not (and .Title (or (ne (.Scratch.Get "relearnIsHiddenStem") true) (ne .Site.Params.disableSeoHiddenPages true) ) ) }}
    <meta name="robots" content="noindex, nofollow, noarchive, noimageindex">
    {{- end }}
    <meta name="description" content="{{ with .Description }}{{ . }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}">
    {{- $authorName := "" }}
    {{- if .Site.Params.author }}
      {{- if reflect.IsMap .Site.Params.author }}
        {{- with .Site.Params.author.name }}
          {{- $authorName = . }}
        {{- end }}
      {{- else }}
        {{- warnf "According to Hugo 0.120.0 the author key in params configuration should now be a map and contain of name and email fields." }}
        {{- $authorName = .Site.Params.author }}
      {{- end }}
    {{- else }}
      {{- with .Site.Author.name }}
        {{- $authorName = . }}
        {{- warnf "The author key in site configuration is deprecated. Use params.author.name instead." }}
      {{- end }}
    {{- end }}
    <meta name="author" content="{{ $authorName }}">
    {{- partial "twitter_cards.html" . }}
    {{- partial "opengraph.html" . }}