config: Update example configs to use rotation_distance

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

config/example-delta.cfg

@@ -10,7 +10,8 @@
 step_pin: ar54
 dir_pin: ar55
 enable_pin: !ar38
-step_distance: .01
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^ar2
 homing_speed: 50
 position_endstop: 297.05
@@ -20,21 +21,24 @@ arm_length: 333.0
 step_pin: ar60
 dir_pin: ar61
 enable_pin: !ar56
-step_distance: .01
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^ar15
 
 [stepper_c]
 step_pin: ar46
 dir_pin: ar48
 enable_pin: !ar62
-step_distance: .01
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^ar19
 
 [extruder]
 step_pin: ar26
 dir_pin: ar28
 enable_pin: !ar24
-step_distance: .0022
+microsteps: 16
+rotation_distance: 33.500
 nozzle_diameter: 0.400
 filament_diameter: 1.750
 heater_pin: ar10