eMotionTech IDEX420 Mirror definition update

In file definition of Strateo IDEX420 mirror, previously, Start Gcode had in comment "select the duplicate tool".
It is now corrected by "select the mirror tool"

resources/definitions/strateo3d_IDEX420_mirror.def.json

@@ -22,7 +22,7 @@
         "machine_extruder_count": { "default_value": 1 },
         "machine_height": { "default_value": 400 },
         "machine_name": { "default_value": "IDEX420 Mirror" },
-        "machine_start_gcode": { "default_value": "G90 ; switch to absolute coordinate mode\nT3 ; select the duplicate tool\nM140 S{material_bed_temperature_layer_0} ;Start heating bed\nM104 S{material_print_temperature_layer_0} ;Start heating extruder\nM190 S{material_bed_temperature_layer_0} ;Wait for bed to reach temp before proceeding\nM109 S{material_print_temperature_layer_0} ;Wait for extruder to reach temp before proceeding\nG1 F18000 Y-160 Z15 ; move fast to the coordinates\nG1 F18000 X0 Z0.3 ; move fast to the coordinates\nG92 E0 ; set the extruders to 0\nG1 F300 X60 E24 ; purge the hotends\nG1 F600 X40 ; swipe the nozzles\nG1 F600 Z3 ; perform Z hop" },
+        "machine_start_gcode": { "default_value": "G90 ; switch to absolute coordinate mode\nT3 ; select the mirror tool\nM140 S{material_bed_temperature_layer_0} ;Start heating bed\nM104 S{material_print_temperature_layer_0} ;Start heating extruder\nM190 S{material_bed_temperature_layer_0} ;Wait for bed to reach temp before proceeding\nM109 S{material_print_temperature_layer_0} ;Wait for extruder to reach temp before proceeding\nG1 F18000 Y-160 Z15 ; move fast to the coordinates\nG1 F18000 X0 Z0.3 ; move fast to the coordinates\nG92 E0 ; set the extruders to 0\nG1 F300 X60 E24 ; purge the hotends\nG1 F600 X40 ; swipe the nozzles\nG1 F600 Z3 ; perform Z hop" },
         "machine_width": { "default_value": 170 }
     }
 }