更新目录

bind_en.md

@@ -1,5 +1,10 @@
-- [1. AliPayPlus](#1-alipayplus)
-- [2. FC](#2-fc)
+## Channel exclusive fields
+
+### Table of Contents:
+
+  - [1. AliPayPlus](#1-alipayplus)
+  - [2. FC](#2-fc)
+
 <!-- ### 1 FC
 
 #### 1.1 Bound card payment