cf_solo.py: wrong Crazyflie uri

[NageshEranki]

Hi

The QAcademy tutorial states that the crazyflie URI must be changed to 'radio://80/2M/E7E7E7E701' in order for the 'cf_solo.py' script to work. However, in that very same python file, the cf_uri variable is assigned 'radio://80/2M/E7E7E7E7E7' at the top.

A connection with the crazyflie is not possible because of this.