zh docs update

orm/docs/zh/Object.md

@@ -1,59 +1,59 @@
 ## Object
 
 对 object 操作的三个方法 Insert / Update / Delete
-
-	o := orm.NewOrm()
-	user := NewUser()
-	user.UserName = "slene"
-	user.Password = "password"
-	user.Email = "vslene@gmail.com"
-	obj := o.Object(user)
-	fmt.Println(obj.Insert())
-	user.UserName = "Your"
-	fmt.Println(obj.Update())
-	fmt.Println(obj.Delete())
-
+```go
+o := orm.NewOrm()
+user := NewUser()
+user.UserName = "slene"
+user.Password = "password"
+user.Email = "vslene@gmail.com"
+obj := o.Object(user)
+fmt.Println(obj.Insert())
+user.UserName = "Your"
+fmt.Println(obj.Update())
+fmt.Println(obj.Delete())
+```
 ### Read
-
-	var user User
-	err := o.QueryTable("user").Filter("id", 1).One(&user)
-	if err != orm.ErrMultiRows {
-		fmt.Println(user.UserName)
-	}
-
+```go
+var user User
+err := o.QueryTable("user").Filter("id", 1).One(&user)
+if err != orm.ErrMultiRows {
+	fmt.Println(user.UserName)
+}
+```
 ### Create
+```go
+profile := NewProfile()
+profile.Age = 30
+profile.Money = 9.8
 
-	profile := NewProfile()
-	profile.Age = 30
-	profile.Money = 9.8
+user := NewUser()
+user.Profile = profile
+user.UserName = "slene"
+user.Password = "password"
+user.Email = "vslene@gmail.com"
+user.IsActive = true
 
-	user := NewUser()
-	user.Profile = profile
-	user.UserName = "slene"
-	user.Password = "password"
-	user.Email = "vslene@gmail.com"
-	user.IsActive = true
-
-	fmt.Println(o.Object(profile).Insert())
-	fmt.Println(o.Object(user).Insert())
-	fmt.Println(user.Id)
-	
+fmt.Println(o.Object(profile).Insert())
+fmt.Println(o.Object(user).Insert())
+fmt.Println(user.Id)
+```
 创建后会自动对 auto 的 field 赋值
 
 ### Update
-
-	var user User
-	err := o.QueryTable("user").Filter("id", 1).One(&user)
-	if err != orm.ErrMultiRows {
-		fmt.Println(user.UserName)
-	}
-	user.UserName = "MyName"
-	o.Object(&user).Update()
-
+```go
+var user User
+err := o.QueryTable("user").Filter("id", 1).One(&user)
+if err != orm.ErrMultiRows {
+	fmt.Println(user.UserName)
+}
+user.UserName = "MyName"
+o.Object(&user).Update()
+```
 ### Delete
-	
-	o.Object(user).Delete()
-
+```go
+o.Object(user).Delete()
+```
 Delete 操作会对反向关系进行操作，此例中 Post 拥有一个到 User 的外键。删除 User 的时候。如果 on_delete 设置为默认的级联操作，将删除对应的 Post
 
 删除以后会清除 auto field 的值