diff --git a/test/cepgen.cpp b/test/cepgen.cpp
index d931f4f..bba7a6f 100644
--- a/test/cepgen.cpp
+++ b/test/cepgen.cpp
@@ -1,65 +1,65 @@
 //--- steering cards
 #include "CepGen/Cards/PythonHandler.h"
 #include "CepGen/Cards/LpairHandler.h"
 
 #include "CepGen/Generator.h"
 #include "CepGen/Core/Exception.h"
 
 //--- necessary include to build the default run
 #include "CepGen/Processes/GamGamLL.h"
 #include "CepGen/Physics/PDG.h"
 
 #include <iostream>
 
 using namespace std;
 
 /**
- * Main caller for this MC generator. Loads the configuration files'
- * variables if passed as an argument to this program, else loads a default
- * LPAIR-like configuration, then launches the cross-section computation and
- * the events generation.
+ * Main caller for this MC generator.
+ *  * loads the configuration files' variables if passed as an argument,
+ *    or a default LPAIR-like configuration,
+ *  * launches the cross-section computation and the events generation.
  * \author Laurent Forthomme <laurent.forthomme@cern.ch>
  */
 int main( int argc, char* argv[] ) {
   //--- first start by defining the generator object
   CepGen::Generator gen;
 
   if ( argc < 2 ) {
     CG_INFO( "main" ) << "No config file provided. Setting the default parameters.";
 
     //--- default run: LPAIR elastic ɣɣ → µ⁺µ¯ at 13 TeV
     gen.parameters->setProcess( new CepGen::Process::GamGamLL );
     gen.parameters->kinematics.central_system = { CepGen::PDG::Muon, CepGen::PDG::Muon };
     gen.parameters->kinematics.mode = CepGen::Kinematics::Mode::ElasticElastic;
     gen.parameters->kinematics.cuts.central.pt_single.min() = 15.;
     gen.parameters->kinematics.cuts.central.eta_single = { -2.5, 2.5 };
     gen.parameters->generation.enabled = true;
     gen.parameters->generation.maxgen = 1e3;
   }
   else {
     CG_INFO( "main" ) << "Reading config file stored in " << argv[1] << ".";
     const std::string extension = CepGen::Cards::Handler::getExtension( argv[1] );
     if ( extension == "card" )
       gen.setParameters( CepGen::Cards::LpairHandler( argv[1] ).parameters() );
 #ifdef PYTHON
     else if ( extension == "py" )
       gen.setParameters( CepGen::Cards::PythonHandler( argv[1] ).parameters() );
 #endif
     else
       throw CG_FATAL( "main" ) << "Unrecognized steering card extension: ." << extension << "!";
   }
 
   //--- list all parameters
   gen.parameters->dump();
 
   //--- let there be a cross-section...
   double xsec = 0., err = 0.;
   gen.computeXsection( xsec, err );
 
   if ( gen.parameters->generation.enabled )
     //--- events generation starts here
     // (one may use a callback function)
     gen.generate();
 
   return 0;
 }