Minimal site with section listings

Thank you! So IIUC, before I accidentally created a “leaf bundle” instead of a “branch bundle” and hence I got a bit stuck!

I’ve added a baseof.html and now upon tips/ I have a listing like:

And what I want instead is:

I’m guessing I need to modify

<ul>
{{ range .Pages }}
<li><a href="{{.RelPermalink}}">
{{ $alternate_title := replace .File.BaseFileName "_" " " | title }}
{{ .Title  | default $alternate_title }}
</a></li>
{{ end }}
</ul>
{{ end }}

But I am not sure how. Wish https://gohugo.io/content-management/sections/ had an example.