config: Consolidate description of heater parameters in example.cfg

Describe max_delta in [heater] instead of in [heater_bed].

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

config/example.cfg

@@ -96,8 +96,7 @@ position_max: 200
 # The extruder section is used to describe both the stepper
 # controlling the printer extruder and the heater parameters for the
 # nozzle. The stepper configuration has the same settings as the
-# stepper_x section and the heater configuration has the same settings
-# as the heater_bed section (described below).
+# stepper_x section.
 [extruder]
 step_pin: ar26
 dir_pin: ar28
@@ -193,6 +192,11 @@ pid_Kd: 114
 #pid_integral_max:
 #   The maximum "windup" the integral term may accumulate. The default
 #   is to use the same value as max_power.
+#max_delta: 2.0
+#   On 'watermark' controlled heaters this is the number of degrees in
+#   Celsius above the target temperature before disabling the heater
+#   as well as the number of degrees below the target before
+#   re-enabling the heater. The default is 2 degrees Celsius.
 #pwm_cycle_time: 0.100
 #   Time in seconds for each software PWM cycle of the heater. It is
 #   not recommended to set this unless there is an electrical
@@ -213,17 +217,13 @@ max_temp: 210
 #   error. These parameters must be provided.
 
 # The heater_bed section describes a heated bed (if present - omit
-# section if not present).
+# section if not present). It uses the same heater settings described
+# in the extruder section.
 [heater_bed]
 heater_pin: ar8
 sensor_type: EPCOS 100K B57560G104F
 sensor_pin: analog14
 control: watermark
-#max_delta: 2.0
-#   On 'watermark' controlled heaters this is the number of degrees in
-#   Celsius above the target temperature before disabling the heater
-#   as well as the number of degrees below the target before
-#   re-enabling the heater. The default is 2 degrees Celsius.
 min_temp: 0
 max_temp: 110