fix: tree examples

examples/tree/background/main.go

@@ -24,17 +24,17 @@ func main() {
 		ItemStyle(itemStyle).
 		EnumeratorStyle(enumeratorStyle).
 		Root("# Table of Contents").
-		Item(
+		Child(
 			tree.New().
 				Root("## Chapter 1").
-				Item("Chapter 1.1").
-				Item("Chapter 1.2"),
+				Child("Chapter 1.1").
+				Child("Chapter 1.2"),
 		).
-		Item(
+		Child(
 			tree.New().
 				Root("## Chapter 2").
-				Item("Chapter 2.1").
-				Item("Chapter 2.2"),
+				Child("Chapter 2.1").
+				Child("Chapter 2.2"),
 		)
 
 	fmt.Println(t)

examples/tree/files/main.go

@@ -19,7 +19,7 @@ func main() {
 			return err
 		}
 		if info.IsDir() {
-			t.Item(tree.New().Root(path))
+			t.Child(tree.New().Root(path))
 		}
 		return nil
 	})

examples/tree/rounded/main.go

@@ -13,25 +13,25 @@ func main() {
 
 	t := tree.New().
 		Root("Groceries").
-		Items(
+		Child(
 			tree.New().
 				Root("Fruits").
-				Items(
+				Child(
 					"Blood Orange",
 					"Papaya",
 					"Dragonfruit",
 					"Yuzu",
 				),
 			tree.New().
 				Root("Items").
-				Items(
+				Child(
 					"Cat Food",
 					"Nutella",
 					"Powdered Sugar",
 				),
 			tree.New().
 				Root("Veggies").
-				Items(
+				Child(
 					"Leek",
 					"Artichoke",
 				),

examples/tree/simple/main.go

@@ -9,19 +9,19 @@ import (
 func main() {
 	t := tree.New().
 		Root(".").
-		Item("Item 1").
-		Item(
+		Child("Item 1").
+		Child(
 			tree.New().
 				Root("Item 2").
-				Item("Item 2.1").
-				Item("Item 2.2").
-				Item("Item 2.3"),
+				Child("Item 2.1").
+				Child("Item 2.2").
+				Child("Item 2.3"),
 		).
-		Item(
+		Child(
 			tree.New().
 				Root("Item 3").
-				Item("Item 3.1").
-				Item("Item 3.2"),
+				Child("Item 3.1").
+				Child("Item 3.2"),
 		)
 
 	fmt.Println(t)