diff --git a/README.md b/README.md
index d758aa9..f78fd5a 100644
--- a/README.md
+++ b/README.md
@@ -81,9 +81,9 @@ Configure mysql:
 
 Refer to [examples/quick_start.go](./examples/quick_start.go)
 
-## [sub-transaction barrier](./doc/barrier-en.md)
+### [sub-transaction barrier](./doc/barrier-en.md)
 
-## [protocol](./doc/protocol-en.md)
+### [protocol](./doc/protocol-en.md)
 
 ### Wechat Group
 
@@ -98,3 +98,14 @@ If you think this project is good, or helpful to you, please give a star!
     <img alt='ivydad' height='40'  src='https://www.ivydad.com/_nuxt/img/header-logo.2645ad5.png'  /img>
     <img alt='eglass' height='40'  src='https://img.epeijing.cn/official-website/assets/logo.png'  /img>
 </div>
+
+### Following is keyword for SEO
+
+分布式事务框架
+
+事务消息
+
+可靠消息
+
+微服务
+
diff --git a/examples/main_xa.go b/examples/main_xa.go
index 9aae0ba..daa2090 100644
--- a/examples/main_xa.go
+++ b/examples/main_xa.go
@@ -65,7 +65,7 @@ func XaFireRequest() string {
 func xaTransIn(c *gin.Context) (interface{}, error) {
 	err := XaClient.XaLocalTransaction(c, func(db *common.DB, xa *dtmcli.Xa) (rerr error) {
 		req := reqFrom(c)
-		if req.TransInResult != "SUCCESS" {
+		if req.TransInResult == "FAILURE" {
 			return fmt.Errorf("tranIn FAILURE")
 		}
 		dbr := db.Exec("update user_account set balance=balance+? where user_id=?", req.Amount, 2)
@@ -81,7 +81,7 @@ func xaTransIn(c *gin.Context) (interface{}, error) {
 func xaTransOut(c *gin.Context) (interface{}, error) {
 	err := XaClient.XaLocalTransaction(c, func(db *common.DB, xa *dtmcli.Xa) (rerr error) {
 		req := reqFrom(c)
-		if req.TransOutResult != "SUCCESS" {
+		if req.TransOutResult == "FAILURE" {
 			return fmt.Errorf("tranOut failed")
 		}
 		dbr := db.Exec("update user_account set balance=balance-? where user_id=?", req.Amount, 1)