What is written here is immaterial!
Yada yada yada...

=begin
= Big headline

Fictitious textblock

== Level 2 headline

This document talks about nothing, but it's
# This is a comment
interesting to test some features of the Ruby Document format.

=== Level 3 headline

Add some more text:
<<< add.rd

==== Level 4 headline

More wasted words...

=end
Ignored text!   :-p

=begin
+ Level 5 headline

See you another time!

++ Level 6 headline

Bye.
=end
More senseless text...