As mentioned above, some examples are distributed via the contur repository, and there are instructions on how to use them in the README file . Those examples show you how to run Herwig on an example model file.
If you just want to test your installation of Contur on some ready-made Rivet output, there
is an example output yoda file from a Herwig/Rivet run
(This was generated by using
this SLHA file to
generate a model (one of those included in the Gambit/Contur study ).