update readme

README.md

@@ -30,7 +30,7 @@ Relational Database is still the cornerstone of core business in enterprises and
 
 ### Sharding-JDBC
 
-[![Maven Status](https://maven-badges.herokuapp.com/maven-central/io.shardingsphere/sharding-jdbc/badge.svg)](https://maven-badges.herokuapp.com/maven-central/io.shardingsphere/sharding-jdbc)
+[![Maven Status](https://maven-badges.herokuapp.com/maven-central/io.shardingsphere/sharding-jdbc/badge.svg)](https://mvnrepository.com/artifact/io.shardingsphere/sharding-jdbc)
 
 Sharding-JDBC is positioned as a lightweight Java framework that provides Sharding service in the JDBC layer. 
 It directly connects to databases to provide services in the form of jar, with no additional deployment and dependencies, and it can be understood as an enhanced version of the JDBC driver, fully compliant with JDBC and various ORM frameworks.
@@ -86,11 +86,10 @@ By using Database Mesh, applications and databases will form a large grid system
 * Forced route based on hint.
 * Distributed primary key.
 
-### Transaction
+### Transaction (Doing)
 
 * XA transaction supported.
-* Best-Effort-Delivery transaction supported.
-* Try-Confirm-Cancel transaction (TBD) supported.
+* BASE transaction supported.
 
 ### Database Orchestration
 

README_ZH.md

@@ -27,7 +27,7 @@ Sharding-Sphere定位为关系型数据库中间件，旨在充分合理地在
 
 ### Sharding-JDBC
 
-[![Maven Status](https://maven-badges.herokuapp.com/maven-central/io.shardingsphere/sharding-jdbc/badge.svg)](http://mvnrepository.com/artifact/io.shardingsphere/sharding-jdbc/3.0.0.M2)
+[![Maven Status](https://maven-badges.herokuapp.com/maven-central/io.shardingsphere/sharding-jdbc/badge.svg)](https://mvnrepository.com/artifact/io.shardingsphere/sharding-jdbc)
 
 定位为轻量级Java框架，在Java的JDBC层提供的额外服务。
 它使用客户端直连数据库，以jar包形式提供服务，无需额外部署和依赖，可理解为增强版的JDBC驱动，完全兼容JDBC和各种ORM框架。