DFR1120 LoRaWAN Tool usage instructions

How can I  install the  LoRaWAN Tool software to be able to cofigure the DFR1120.

The wiki point me to: https://github.com/DFRobot/LoRaWAN_Tool 

and for intallation instructions points this wiki  me to:  For usage instructions, please visit: https://wiki.dfrobot.com/SKU_DFR1120_LoRaWAN_Control_Terminal

and this url  shows an empty page: