diff --git a/notice/api/2.2.md b/notice/api/2.2.md
index 6012de5..8baceab 100644
--- a/notice/api/2.2.md
+++ b/notice/api/2.2.md
@@ -15,8 +15,9 @@ Links
 	- [(2) basic knowledge](#2-basic-knowledge)  
 - [2 - Usage](#2---usage)  
 	- [(1) setup](#1-setup)  
-	- [(2) from php internally](#2-from-php-internally)  
-	- [(3) from HTTP requests](#3-from-http-requests)  
+	- [(2) php requirements](#2-php-requirements)
+	- [(3) from php internally](#3-from-php-internally)  
+	- [(4) from HTTP requests](#4-from-http-requests)  
 - [3 - Configuration](#3---configuration)  
 	- [(1) Basic usage](#1-basic-usage)  
 	- [(2) Advanced usage](#2-advanced-usage)