Removed trailing spaces in Config_reference

docs/Config_Reference.md

@@ -2662,10 +2662,10 @@ pin:
 #   enabling or increasing it by more than 50% (helps get the fan
 #   spinning). The default is 0.100 seconds.
 #min_time: 0.1
-#   The minimum time in seconds during which the fan will execute the 
+#   The minimum time in seconds during which the fan will execute the
 #   previous set speed value and not start executing the next one.
 #   The default is 0.100 seconds.
-#   The value can be changed downwards if the gcode contains a lot of 
+#   The value can be changed downwards if the gcode contains a lot of
 #   fast fan speed changes.
 #off_below: 0.0
 #   The minimum input speed which will power the fan (expressed as a