hugo-theme-introduction/layouts/partials/home/social.html

<div class="social-icons">
    {{ range .Site.Params.social }}
      {{ if eq .icon_pack "fab" }}
        <a href="{{ .url }}" {{ .html_attributes | safeHTMLAttr }}>
          <i class="{{ .icon_pack}} fab fa-{{ .icon}}"></i>
        </a>
      {{ end }}
      {{ if eq .icon_pack "fas" }}
      <a href="{{ .url }}" {{ .html_attributes | safeHTMLAttr }}>
          <i class="{{ .icon_pack}} fas fa-{{ .icon}}"></i>
        </a>
      {{ end }}
      {{ if eq .icon_pack "ai" }}
      <a href="{{ .url }}" {{ .html_attributes | safeHTMLAttr }}>
        <i class="{{ .icon_pack}} ai-{{ .icon}} ai-1.9x"></i>
      </a>
      {{ end }}
  {{ end }}
</div>