Description that doesn't fit to the default value in VehicleWheel documentation

**Issue description:**
There are issue between the description and the default.

For example:

- wheel_friction_slip: default 10.5, description: "0.0 means no grip, 1.0 is normal grip."

- suspension_travel: default: 5.0, description: "keep this setting relatively low. Try a value between 0.1 and 0.3"

- ...

Je ne sais pas si la description est fausse ou si la valeur par défaut est étrange.

**URL to the documentation page:**
https://docs.godotengine.org/en/stable/classes/class_vehiclewheel.html