Example with mandatory variables not filled in

<h1>Example with mandatory variables not filled in</h1>

<pre>rougail:                      # Rougail
  var:                        # A suffix variable
    - example</pre><h1>Example with all variables modifiable</h1>

<pre>rougail:                      # Rougail
  var:                        # A suffix variable
    - example
  dynexample:                 # A dynamic family
    var: val                  # A variable inside dynamic family</pre>