Render Markdown inline

Within the markdown, provide a way to declare pages that get rendered as stand-alone pages as well.

````

# Cover


# Colophon

```
# Hobbit
## There and back again
## By JRR Tolkein
```{: inline=1}

````

Renders a cover, a single page with the 3 lines as above, and then the foreword. So the colophon ends up linking to the middle text section