config: Update example configs to use rotation_distance

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

config/printer-wanhao-duplicator-i3-plus-mark2-2019.cfg

@@ -8,7 +8,8 @@
 step_pin: PF7
 dir_pin: !PK0
 enable_pin: !PF6
-step_distance: .0125
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^!PF0
 position_endstop: 0
 position_max: 200
@@ -18,7 +19,8 @@ homing_speed: 30.0
 step_pin: PK2
 dir_pin: !PK3
 enable_pin: !PE4
-step_distance: .0125
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^!PA2
 position_endstop: 0
 position_max: 200
@@ -28,7 +30,8 @@ homing_speed: 30.0
 step_pin: PK5
 dir_pin: PK7
 enable_pin: !PK4
-step_distance: .0025
+microsteps: 16
+rotation_distance: 8
 endstop_pin: probe:z_virtual_endstop
 position_max: 180
 position_min: -0.5
@@ -37,7 +40,8 @@ position_min: -0.5
 step_pin: PF4
 dir_pin: PF5
 enable_pin: !PF3
-step_distance: 0.010417
+microsteps: 16
+rotation_distance: 33.334
 nozzle_diameter: 0.300
 filament_diameter: 1.750
 heater_pin: PG5