Describe Wind Mill in guide

guide.lua

@@ -1156,6 +1156,34 @@ local pages={
 				<left>||Picture 2. Water Mill in water.||</left>
 			]]
 		}
+	},
+
+	{
+		name="windMill",
+		title=S("Wind Mill"),
+		icon="industrialtest:wind_mill",
+		content={
+			[[
+				<big>||Wind Mill||</big>
+				<left>
+					||Wind Mill can be used to produce energy from wind moving it's fan. The amount of produced power depends on height where Wind Mill is put, the higher the more power and it is indicated by icon in formspec. Wind Mill can't be put next to any node or otherwise it won't produce power.||
+				</left>
+			]],
+			createMachineInformationTable({
+				{
+					name="outputVoltage",
+					value="LV"
+				},
+				{
+					name="powerCapacity",
+					value=string.format("%d EU",industrialtest.WindMill.capacity)
+				}
+			},S("Wind Mill")),
+			[[
+				<img name="industrialtest_guide_wind_mill.png">
+				<left>||Picture 1. Wind Mill producing some power.||</left>
+			]]
+		}
 	}
 }