Update README.md

README.md

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 * **Service registration and discovery**：Service can be registered and clients can discover the instances using Spring-managed beans, auto integration Ribbon.
 * **Distributed configuration**：support for externalized configuration in a distributed system, auto refresh when configuration changes.
 * **Event-driven**：support for building highly scalable event-driven microservices connected with shared messaging systems.
+* **Distributed Transaction**：support for distributed transaction solution with high performance and ease of use.
 * **Alibaba Cloud Object Storage**：massive, secure, low-cost, and highly reliable cloud storage services. Support for storing and accessing any type of data in any application, anytime, anywhere.
+* **Alibaba Cloud SchedulerX**：accurate, highly reliable, and highly available scheduled job scheduling services with response time within seconds.
+* **Alibaba Cloud SMS**： A messaging service that covers the globe, Alibaba SMS provides convenient, efficient, and intelligent communication capabilities that help businesses quickly contact their customers.
+
 For more features, please refer to [Roadmap](https://github.com/spring-cloud-incubator/spring-cloud-alibaba/blob/master/Roadmap.md).
 
 ## Components
 
 **[Sentinel](https://github.com/alibaba/Sentinel)**: Sentinel takes "traffic flow" as the breakthrough point, and provides solutions in areas such as flow control, concurrency, circuit breaking, and load protection to protect service stability.
 
-**[Nacos](https://github.com/alibaba/Nacos)**: an easy-to-use dynamic service discovery, configuration and service management platform for building cloud native applications.
+**[Nacos](https://github.com/alibaba/Nacos)**: An easy-to-use dynamic service discovery, configuration and service management platform for building cloud native applications.
+
+**[RocketMQ](https://rocketmq.apache.org/)**：A distributed messaging and streaming platform with low latency, high performance and reliability, trillion-level capacity and flexible scalability.
+
+**[Dubbo](https://github.com/apache/incubator-dubbo)**：A high-performance, Java based open source RPC framework.
 
-**[RocketMQ](https://rocketmq.apache.org/)**：a distributed messaging and streaming platform with low latency, high performance and reliability, trillion-level capacity and flexible scalability.
+**[Fescar](https://github.com/alibaba/fescar)**：A distributed transaction solution with high performance and ease of use for microservices architecture.
 
-**[Alibaba Cloud ACM](https://www.aliyun.com/product/acm)**：an application configuration center that enables you to centralize the management of application configurations, and accomplish real-time configuration push in a distributed environment.
+**[Alibaba Cloud ACM](https://www.aliyun.com/product/acm)**：An application configuration center that enables you to centralize the management of application configurations, and accomplish real-time configuration push in a distributed environment.
 
 **[Alibaba Cloud OSS](https://www.aliyun.com/product/oss)**: An encrypted and secure cloud storage service which stores, processes and accesses massive amounts of data from anywhere in the world.
 
+**[Alibaba Cloud SMS](https://www.aliyun.com/product/sms)**: A messaging service that covers the globe, Alibaba SMS provides convenient, efficient, and intelligent communication capabilities that help businesses quickly contact their customers.
+
+**[Alibaba Cloud SchedulerX](https://www.aliyun.com/product/SchedulerX)**:accurate, highly reliable, and highly available scheduled job scheduling services with response time within seconds..
+
 For more features please refer to [Roadmap](https://github.com/spring-cloud-incubator/spring-cloud-alibaba/blob/master/Roadmap.md).
 
 ## How to build