message: Added a missing param
diff: @@ -82,7 +82,7 @@ void QAOA::execute(const std::shared_ptr<AcceleratorBuffer> buffer) const
  std::make_pair("nbQubits", nbQubits),
  std::make_pair("nbSteps", m_nbSteps),
  std::make_pair("cost-ham", m_costHamObs),
  - std::make_pair("ref-ham", m_refHamObs),
  + std::make_pair("ref-ham", m_refHamObs)
  });
  // Observe the cost Hamiltonian:
  @@ -179,7 +179,8 @@ std::vector<double> QAOA::execute(const std::shared_ptr<AcceleratorBuffer> buffe
  kernel->expand({
  std::make_pair("nbQubits", nbQubits),
  std::make_pair("nbSteps", m_nbSteps),
  - std::make_pair("cost-ham", m_costHamObs)
  + std::make_pair("cost-ham", m_costHamObs),
  + std::make_pair("ref-ham", m_refHamObs)
  });
  // Observe the cost Hamiltonian:
  