documentation: wrong input range for parameter xyz in method go_xyz_speed

[cappe89]

The range for the parameters x, y and z shoud be -500 500 and not 20 500 as indcated in the documentation

DJITelloPy/djitellopy/tello.py

Line 668 in aad98c1

x: 20-500

[csev1755]

According to Ryze Tech's official SDK 1.3.0.0 documentation on page 5, the parameters are in fact 20-500.
https://dl-cdn.ryzerobotics.com/downloads/tello/20180910/Tello%20SDK%20Documentation%20EN_1.3.pdf

It is a little confusing that the curve command has different parameters. You would think the range would be -500 to 500 regardless. On page 3 of the SDK 2.0, they have the parameters set to -500-500. https://dl-cdn.ryzerobotics.com/downloads/Tello/Tello%20SDK%202.0%20User%20Guide.pdf

It could be an error on Ryze's side, but I don't have enough space to try this out with my Tello (non-EDU) without risk of crashing it, unfortunately. Hopefully someone has more info on this.