improved readme

README.md

@@ -167,7 +167,7 @@ sql = "update userinfo set username=? where id=?"
 res, err := engine.Exec(sql, "xiaolun", 1) 
 ```
 
-##Deep Use
+##Advanced Usage
 for deep usage, you should create a session, this func will create a database connection immediatelly
 
 ```
@@ -267,6 +267,7 @@ if err != nil {
 ```
 
 ##Mapping Rules
+<a name="8" id="8"></a>
 1.Struct and struct's fields name should be Pascal style, and the table and column's name default is SQL style.
 
 For example: 

README_CN.md

@@ -1,5 +1,4 @@
 # xorm
-----------
 [English](https://github.com/lunny/xorm/blob/master/README.md)
 
 xorm是一个Go语言的ORM库. 通过它可以使数据库操作非常简便。
@@ -163,6 +162,7 @@ res, err := engine.Exec(sql, "xiaolun", 1)
 ```
 
 ##高级用法
+<a name="8" id="8"></a>
 更高级的用法，我们必须要使用session对象，session对象在创建时会立刻创建一个数据库连接。
 
 ```