diff --git a/README.md b/README.md
index 11e68ed..79e6ae1 100644
--- a/README.md
+++ b/README.md
@@ -1,60 +1,60 @@
 # jsun
 this is a go json tool like encode/json but allow you to use camelName/CamelName or under_score name style
-`
-package main
 
-import (
-	"fmt"
+    package main
+    
+    import (
+    	"fmt"
+    
+    	"github.com/JessonChan/jsun"
+    )
+    
+    type Person struct {
+    	Id        int
+    	FirstName string
+    	LastName  string `json:"name"`
+    }
+    
+    func main() {
+    	p := Person{
+    		Id:        1,
+    		FirstName: "FirstName",
+    		LastName:  "LastName",
+    	}
+    	jsun.UnderScoreStyle()
+    	b, _ := jsun.Marshal(&p)
+    	fmt.Println(string(b))
+    }
 
-	"github.com/JessonChan/jsun"
-)
-
-type Person struct {
-	Id        int
-	FirstName string
-	LastName  string `json:"name"`
-}
-
-func main() {
-	p := Person{
-		Id:        1,
-		FirstName: "FirstName",
-		LastName:  "LastName",
-	}
-	jsun.UnderScoreStyle()
-	b, _ := jsun.Marshal(&p)
-	fmt.Println(string(b))
-}
-`
 output
-{"id":1,"first_name":"FirstName","name":"LastName"}
-
-`
-package main
 
- import (
- 	"fmt"
+> {"id":1,"first_name":"FirstName","name":"LastName"}
+
+
+    package main
+    
+     import (
+     	"fmt"
+    
+     	"github.com/JessonChan/jsun"
+     )
+    
+     type Person struct {
+     	Id        int
+     	FirstName string
+     	LastName  string `json:"name"`
+     }
+    
+     func main() {
+     	p := Person{
+     		Id:        1,
+     		FirstName: "FirstName",
+     		LastName:  "LastName",
+     	}
+     	b, _ := jsun.Marshal(&p)
+     	fmt.Println(string(b))
+     }
 
- 	"github.com/JessonChan/jsun"
- )
-
- type Person struct {
- 	Id        int
- 	FirstName string
- 	LastName  string `json:"name"`
- }
-
- func main() {
- 	p := Person{
- 		Id:        1,
- 		FirstName: "FirstName",
- 		LastName:  "LastName",
- 	}
- 	b, _ := jsun.Marshal(&p)
- 	fmt.Println(string(b))
- }
-`
 output
-{"id":1,"firstName":"FirstName","name":"LastName"}
-
 
+> {"id":1,"firstName":"FirstName","name":"LastName"}