add spawn rate for each crop in settings

farming.conf_example

@@ -5,31 +5,32 @@
 	world folder for map specific settings.
 --]]
 
--- true to enable crop/food in-game and on mapgen
-farming.carrot = true
-farming.potato = true
-farming.tomato = true
-farming.cucumber = true
-farming.corn = true
-farming.coffee = true
-farming.melon = true
-farming.pumpkin = true
-farming.cocoa = true
-farming.raspberry = true
-farming.blueberry = true
-farming.rhubarb = true
-farming.beans = true
-farming.grapes = true
-farming.barley = true
-farming.chili = true
-farming.hemp = true
-farming.onion = true
-farming.garlic = true
-farming.pepper = true
-farming.pineapple = true
-farming.peas = true
-farming.beetroot = true
-farming.grains = true
-
--- rarety of crops on map, default is 0.001 (higher number = more crops)
+-- true to enable crop/food in-game and on mapgen set spawn rarety
+farming.carrot = 0.001
+farming.potato = 0.001
+farming.tomato = 0.001
+farming.cucumber = 0.001
+farming.corn = 0.001
+farming.coffee = 0.001
+farming.melon = 0.001
+farming.pumpkin = 0.001
+farming.cocoa = true -- true or false only
+farming.raspberry = 0.001
+farming.blueberry = 0.001
+farming.rhubarb = 0.001
+farming.beans = 0.001
+farming.grapes = 0.001
+farming.barley = true -- true or false only
+farming.chili = 0.002
+farming.hemp = 0.002
+farming.garlic = 0.001
+farming.onion = 0.001
+farming.pepper = 0.002
+farming.pineapple = 0.001
+farming.peas = 0.001
+farming.beetroot = 0.001
+farming.grains = true -- true or false only
+farming.rarety = 0.002
+
+-- rarety of crops on map, default is 0.002 (higher number = more crops)
 farming.rarety = 0.002