Example with mandatory variables not filled in

```yaml --- rougail: # Rougail var2: example # A second variable ```

Example with all variables modifiable

```yaml --- rougail: # Rougail var: # A suffix variable - val1 - val2 var2: example # A second variable dynval1: # A dynamic family vardyn: val # A dynamic variable dynval2: # A dynamic family vardyn: val # A dynamic variable ```