Update README.md

Author: kazuki43zoo

README.md

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 ![mybatis-spring](https://mybatis.org/images/mybatis-logo.png)
 
-MyBatis Spring-Boot-Starter will help you to use MyBatis with Spring Boot
+MyBatis Spring-Boot-Starter will help you to use [MyBatis](https://github.com/mybatis/mybatis-3) with [Spring Boot](https://github.com/spring-projects/spring-boot)
 
 ## Requirements