added an comment

Math/Math.cs

@@ -4,6 +4,13 @@ namespace SJK.Math;
 
 public static class SJKMath
 {
+    /// <summary>
+    /// Gets the max number in a array of values.
+    /// </summary>
+    /// <typeparam name="T"></typeparam>
+    /// <param name="values"></param>
+    /// <returns></returns>
+    /// <exception cref="ArgumentException"></exception>
     public static T Max<T>(params T[] values) where T : INumber<T>
     {
         if (values.Length == 0)