diff --git a/notice/api/3.0.md b/notice/api/3.0.md
index 413c4b6..e72d824 100644
--- a/notice/api/3.0.md
+++ b/notice/api/3.0.md
@@ -41,7 +41,18 @@ Plan
 - [**2** Core implementation](#2---core-implementation)
 	- [Classes](#classes)
 	- [Methods](#methods)
-	- [Method arguments](#Method-arguments)
+	- [Method arguments](#method-arguments)
+	- [Return statement](#return-statement)
+	- [Before and After scripts](#before-and-after-scripts)
+	- [Example](#example)
+
+[**V.** Type Checker](#v-type-checker)
+
+- [**1** Permissions : AuthSystem](#1---permissions--authsystem)
+- [**2** Core implementation](#2---core-implementation)
+	- [Classes](#classes)
+	- [Methods](#methods)
+	- [Method arguments](#method-arguments)
 	- [Return statement](#return-statement)
 	- [Example](#example)
 
@@ -331,6 +342,10 @@ If you don't return the 'error' field, by default to
 [ 'error' => new \error\core\Error(\error\core\Err::Success) ]
 ```
 
+### Before and After scripts
+
+Each time a **method** is called, the api **creates an instance** from the class, and after the execution, the class is **destroyed**. So you can implement the methods `__construct` and `__destruct` to add before and after scripts.
+
 ### example
 
 For instance here, we manage the call `GET /article/2` where `2` is the argument `URL0` renamed to `id_article`.
@@ -365,7 +380,7 @@ public function GET($parameters){
 *Note*: Functions `get_article_from_database()` and `has_error()` do not exist, it was in order for all to understand the example
 
 
-## **3** Type Checker
+# **V.** Type Checker
 
 `\api\core\Checker` checks the input values according to the type given in the configuration.
 
@@ -396,11 +411,4 @@ To add a new type, just open the file `/build/api/Checker.php` and add an entry
 |`array<a>`|`a`|Array containing only entries matching the type `a`|
 
 > **Note:** It is possible to chain `array` type as many as needed.
-**Ex.:** `array<array<id>>` - Will only match an array containing arrays that only contains `id` entries.
-
-
-## **4** Advanced
-
-### Before and After scripts
-
-Each time a **method** is called, the api **creates an instance** from the class, and after the execution, the class is **destroyed**. So you can implement the methods `__construct` and `__destruct` to add before and after scripts.
\ No newline at end of file
+**Ex.:** `array<array<id>>` - Will only match an array containing arrays that only contains `id` entries.
\ No newline at end of file