added changelog generator and updated configs

config/fixedanvilrepaircost.json5

@@ -0,0 +1,11 @@
+{
+	// The amount of level it costs to repair an item on an anvil. A value of 0 keeps vanilla behaviour.
+	// min: 0, max: 100
+	"repairCostLevelAmount": 3,
+	// The amount of material it costs to repair an item on an anvil. A value of 0 keeps vanilla behaviour.
+	// min: 0, max: 64
+	"repairCostMaterialAmount": 1,
+	// How much the item is repaired per action. By default 33.33%, so 3 of 'repairCostMaterialAmount' fully repairs any item.
+	// min: 0.0, max: 1.0
+	"percentRepairedPerAction": 0.3333
+}