Untitled

Give this site structure:

```
│   config.toml
├───content
│   └───blog
│       │   post1.md
│       │   post2.md
│       └───post3
│               index.md
│               post3a.md
│               post3b.md
├───layouts
│   │   index.html
│   ├───shortcodes
│   │       page-resource.html
│   └───_default
│           single.html
```

`layouts/_default/single.html`:

```
<html>
  <body>
    <h1>{{ .Title }}</h1>
    {{ .Content }}
  </body>
</html>
```

`layouts/index.html`:

```
<html>
  <body>
    {{- range .Pages }}
      <a href="{{ .RelPermalink }}">{{ .Title }}</a>
      <br>
    {{- end }}
  </body>
</html>
```

From `post3/index.md`, you can then reference its page resources (`page3a.md` and `page3b.md`) with a shortcode, which lives at `layouts/shortcodes/page-resource.html`:

```
{{ $page := .Page.Resources.GetMatch (.Get 0) }}
{{ $page.Content }}
```

Then in your `post3/index.md`, use the shortcode:

```
---
title: "Post3"
---

Post3 content.

{{< page-resource "post3a.md" >}}

{{< page-resource "post3b.md" >}}
```

Which, for `/index.html`, will output:

```
<html>
  <body>
      <a href="/blog/post1/">Post1</a>
      <br>
      <a href="/blog/post2/">Post2</a>
      <br>
      <a href="/blog/post3/">Post3</a>
      <br>
  </body>
</html>
```

And for `/blog/post3/index.html`, will output:

```
<html>
  <body>
    <h1>Post3</h1>
    <p>Post3 content.</p>
    <p>Post3a content.</p>
    <p>Post3b content.</p>
  </body>
</html>
```