Introductory remarks are here. This is a small template file that can be copied for Makefile testing and initial file generation.
Now we go into details.
There might be some example command-line usage with accompanying console output. This is an example of such output:
// This is a comment
$ some-command
Some Output
...
// Commands issued by normal users have a prompt that starts with a '$' sign,
// and they are coloured green:
$ whoami
myname
$ sudo /bin/bash
[sudo] password for myname:
// Now the user becomes root, so the prompt ('#') and the colour ('red') change:
# whoami
root
Hello World!
etc.