diff --git a/README.md b/README.md
index 3ea8303..2e9d39a 100644
--- a/README.md
+++ b/README.md
@@ -11,8 +11,8 @@
 - [Install](#install)
 - [Features](#features)
 - [Docs](#docs)
-- [Configuration](#configuration)
 - [Usage](#usage)
+- [Configuration](#configuration)
 - [Struct Tag Grammar](#struct-tag-grammar)
 - [Functions](#functions)
     - [Builtin functions](#builtin-functions)
@@ -227,7 +227,7 @@ type ExamData struct {
 
 > - eachTextJoin(sep) get each element text and join to string, return string.
 
-> - nodeEq(index) reduces the set of matched elements to the one at the specified index, return Selection for nested struct.
+> - eq(index) reduces the set of matched elements to the one at the specified index, return Selection for nested struct.
 
 > - ...
 
diff --git a/_examples/advance/main.go b/_examples/advance/main.go
index 5445e22..b80b7c6 100644
--- a/_examples/advance/main.go
+++ b/_examples/advance/main.go
@@ -36,20 +36,21 @@ type PageData struct {
 	Title string `pagser:"title"`
 	H1    string `pagser:"h1"`
 	Navs  []struct {
-		ID   int    `pagser:"->attrEmpty(id, -1)"`
-		Name string `pagser:"a"`
-		Url  string `pagser:"a->attr(href)"`
+		ID     int    `pagser:"->attrEmpty(id, -1)"`
+		Name   string `pagser:"a"`
+		Url    string `pagser:"a->attr(href)"`
+		AbsUrl string `pagser:"a->absHref('https://github.com/foolin/pagser')"`
 	} `pagser:".navlink li"`
 	NavFirst struct {
 		ID   int    `pagser:"->attrEmpty(id, -1)"`
 		Name string `pagser:"a"`
 		Url  string `pagser:"a->attr(href)"`
-	} `pagser:".navlink li->nodeEq(0)"`
+	} `pagser:".navlink li->eq(0)"`
 	NavLast *struct {
 		ID   int    `pagser:"->attrEmpty(id, -1)"`
 		Name string `pagser:"a"`
 		Url  string `pagser:"a->attr(href)"`
-	} `pagser:".navlink li->nodeEq(-1)"`
+	} `pagser:".navlink li->eq(-1)"`
 	NavIds        []int    `pagser:".navlink li->eachAttrEmpty(id, -1)"`
 	NavTexts      []string `pagser:".navlink li"`
 	NavEachTexts  []string `pagser:".navlink li->eachText()"`