Limit previous-next to parent section

support
2

Solution as per guidance from here.

{{ $p := where site.RegularPages.ByWeight.Reverse "Section" "example-section" }}
          {{ with $p.Prev . }}
             <a aria-label="Previous page. {{ .Title}}" href="{{ .Permalink }}">« {{ .Title }}</a>
          {{ end }}
          {{ with $p.Next . }}
             <a arial-label="Next page. {{ .Title }}" href="{{ .Permalink }}">{{ .Title }} »</a>
          {{ end }}