better wording and references
better wording and references

ChristopheVuillot/qiskit-sdk-py,ChristopheVuillot/qiskit-sdk-py,QISKit/qiskit-sdk-py,ChristopheVuillot/qiskit-sdk-py,atilag/qiskit-sdk-py,atilag/qiskit-sdk-py,QISKit/qiskit-sdk-py,QISKit/qiskit-sdk-py,atilag/qiskit-sdk-py