[[chap_01]]
Title of first chapter
----------------------

________________________________
What we will do in this chapter:

* stuff
* more stuff
* talk about other stuff
* play with stuff
________________________________

[[sect_01_01]]
Section1 title
--------------

[[sect_01_01_01]]
Section2 title
~~~~~~~~~~~~~~

Usually some introduction

on all the aspects of stuff.

[[sect_01_01_02]]
Section2 title
~~~~~~~~~~~~~~

In-depth discussion

Explain concepts.

[[sect_01_01_03]]
Section2 title
~~~~~~~~~~~~~~

Maybe some examples

And a hint to the next section of the chapter.

[[sect_01_02]]
Section1 title
--------------

[[sect_01_02_01]]
Section2 title
~~~~~~~~~~~~~~

More stuff

More stuff

[[sect_01_02_02]]
Section2 title
~~~~~~~~~~~~~~

This is the second subsection of the second section of the first
chapter.

Add as many sections and subsections as you want.
