description/memo to fertility-lifestage code

1.3/Source/PawnCapacities/PawnCapacityWorker_Fertility.cs

@@ -65,16 +65,19 @@ namespace rjw
 			}
 			else
 			{
-				foreach (LifeStageAge lifestage in race.lifeStageAges) {
+				foreach (LifeStageAge lifestage in race.lifeStageAges)
+				{
 					if (lifestage.def.reproductive)
 						//presumably teen stage
-						if (startAge == 0f && startMaxAge == 0f) {
+						if (startAge == 0f && startMaxAge == 0f)
+						{
 							startAge = lifestage.minAge;
 							startMaxAge = (Mathf.Max(startAge + (startAge + endAge) * 0.08f, startAge));
 						}
 						//presumably adult stage
-						else {
-							if (startMaxAge > lifestage.minAge)
+						else
+						{
+							if (startMaxAge > lifestage.minAge) // ensure peak fertility stays at start or a bit before adult stage
 								startMaxAge = lifestage.minAge;
 						}
 				}