Merge pull request #174 from sarahp1980/patch-26

Update Table_60_Utilization_Rates_For_Livestock_Grazing_Provider.cs

H.Core/Providers/Plants/Table_60_Utilization_Rates_For_Livestock_Grazing_Provider.cs

@@ -14,6 +14,7 @@ namespace H.Core.Providers.Plants
     /// 
     /// A revised utilization rate table for grazed systems, where the utilization rate depends on the type of grazed perennial
     /// forage (rather than the grazing regime or stocking density), and this in turn can be used to back-calculate above ground pasture biomass.
+    /// <para>Source: Bailey et al. (2010) (for native rangeland utilization rate); Expert opinion</para>
     /// </summary>
     public class Table_60_Utilization_Rates_For_Livestock_Grazing_Provider
     {