Some posts are conversations

Petr

I need a dialogue in a blog post.

./blog.sh

Write it in a chat fence. Name, colon, line.

Petr

That's it?

./blog.sh

A line without a colon continues the one above it.

Petr

And Markdown inside?

./blog.sh

Works. Bold, links, code — the usual.

Petr

Every other engine wants a plugin for this.

./blog.sh

Every other engine wants a plugin for tables, too.

The source of that exchange is exactly what you just read — speaker's name, a colon, the line:

Petr: I need a dialogue in a blog post.
./blog.sh: Write it in a chat fence. Name, colon, line.
Petr: That's it?

Wrap those lines in a code fence tagged chat and you're done.

You just read the feature. That's the whole documentation.