Hanging Indent in .md & maintaining formatting

support
3

V2. Handles multiple references, one per line.

Shortcode:

{{- $p := .Page -}}
{{- range (split .Inner "\n") -}}
  {{- if gt (len .) 0 }}
  <p class="p2">
    {{ . | $p.RenderString }}
  </p>
  {{- end }}
{{- end -}}

Markdown:

{{< biblio-ref >}}
Hugo, Victor. *The Hunchback of Notre-Dame*. Unknown publisher, 1831.
Hugo, Victor. *Les Misérables*. Unknown publisher, 1862.
Hugo, Victor. *Les Travailleurs de la Mer*. Unknown publisher, 1866.
Hugo, Victor. *Quatre-vingt-treize*. Unknown publisher, 1874.
{{< /biblio-ref >}}