it is quite simple all you need to do is this
Step 1 Download the driver from here
https://github.com/Davidobot/BetterJoyForCemu/releases and extract it with 7-zip or winrar
Step 2 Connect the jot-con(s)/pro controller to your computer using bluetooth
Step 3 run “.Driver instal.BAT” and wait for the procces to complete after that run “BetterJoyForCemu.exe”
Step 4 In citra go to Emulation -> Configure -> Controls -> Motion/Touch at motion provider set CemuHookUDP than press OK
Thats all you need to do