config: Update example configs to use rotation_distance

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

config/printer-anycubic-4max-2018.cfg

@@ -7,7 +7,8 @@
 step_pin: ar54
 dir_pin: ar55
 enable_pin: !ar38
-step_distance: .0125
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^!ar3
 position_min: -2
 position_endstop: -2
@@ -18,7 +19,8 @@ homing_speed: 60.0
 step_pin: ar60
 dir_pin: ar61
 enable_pin: !ar56
-step_distance: .0125
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^!ar14
 position_endstop: 0
 position_max: 215
@@ -28,7 +30,8 @@ homing_speed: 60.0
 step_pin: ar46
 dir_pin: ar48
 enable_pin: !ar62
-step_distance: .0025
+microsteps: 16
+rotation_distance: 8
 endstop_pin: ^!ar18
 position_endstop: 0.5
 position_max: 305
@@ -38,7 +41,8 @@ homing_speed: 8.0
 step_pin: ar26
 dir_pin: ar28
 enable_pin: !ar24
-step_distance: 0.010354
+microsteps: 16
+rotation_distance: 33.133
 nozzle_diameter: 0.400
 filament_diameter: 1.750
 max_extrude_only_distance: 2000