Improved the description for the guard

Author: Kersoph

Lessons/1/Description.json

@@ -1,6 +1,6 @@
 {
     "Title": "[center]Electrical Road Barrier[/center]",
-    "Description": "There are various electrical road barriers installed to prevent access to vehicles. As an introduction example we use a simple barrier with a motor to lift or lower the barrier and a sensor when the opened or closed position are reached. A Guard tells the controller when the road should be blocked or passable.",
+    "Description": "There are various electrical road barriers installed to prevent access to vehicles. As an introduction example we use a simple barrier with a motor to lift or lower the barrier and a sensor when the opened or closed position are reached. A Guard in the right green building next to the barrier signals when the road should be blocked or passable.",
     "Goal": "Create a sequential function chart to let vehicles pass the checkpoint according to the guards signal.",
 	"Simulation": "res://data/plant_models/electrical_barrier/ElectricalBarrier.tscn",
 	"Test": "res://data/plant_models/electrical_barrier/ElectricalBarrierTest.tscn"