Merge pull request #221 from RongtongJin/add_badge

Doc(readme):add new badge for readme doc
diff --git a/README.md b/README.md
index a5d9429..dfb8d0b 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@
 [![Maven Central](https://maven-badges.herokuapp.com/maven-central/org.apache.rocketmq/rocketmq-spring-all/badge.svg)](https://search.maven.org/search?q=g:org.apache.rocketmq%20AND%20a:rocketmq-spring-all)
 [![GitHub release](https://img.shields.io/badge/release-download-orange.svg)](https://github.com/apache/rocketmq-spring/releases)
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
+[![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/apache/rocketmq-spring.svg)](http://isitmaintained.com/project/apache/rocketmq-spring "Average time to resolve an issue")
+[![Percentage of issues still open](http://isitmaintained.com/badge/open/apache/rocketmq-spring.svg)](http://isitmaintained.com/project/apache/rocketmq-spring "Percentage of issues still open")
 
 This project aims to help developers quickly integrate [RocketMQ](http://rocketmq.apache.org/) with [Spring Boot](http://projects.spring.io/spring-boot/).