diff --git a/orderBy.go b/orderBy.go
index b61093d..36435c5 100644
--- a/orderBy.go
+++ b/orderBy.go
@@ -1,5 +1,8 @@
 package underscore
 
+// Orders a slice by a field value within a struct, the predicate allow you
+// to pick the fields you want to orderBy. Use > for ASC or < for DESC
+//   func (left Person, right Person) bool { return person.Age > person.Age }
 func OrderBy[T any](list []T, predicate func(T, T) bool) []T {
 	swaps := true
 	var tmp T