diff --git a/I. Spring Boot Documentation/5. Learning about Spring Boot features.md b/I. Spring Boot Documentation/5. Learning about Spring Boot features.md
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--- a/I. Spring Boot Documentation/5. Learning about Spring Boot features.md	
+++ b/I. Spring Boot Documentation/5. Learning about Spring Boot features.md	
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+### 5. 了解Spring Boot特性
+
+需要更多Spring Boot核心特性？[这是问你准备的](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features)！
+
+- 核心特性：[SpringApplication](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-spring-application)｜[外部配置](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-external-config)｜[Profiles](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-profiles)｜[日志](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-logging)
+- Web应用：[MVC](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-spring-mvc)｜[内嵌容器](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-embedded-container)
+- 使用数据：[SQL](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-sql)｜[NO-SQL](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-nosql)
+- 消息：[概述](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-messaging)｜[JMS](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-jms)
+- 测试：[概述](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-testing)｜[Boot应用](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-testing-spring-boot-applications)｜[工具](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-test-utilities)
+- 扩展：[Auto-configuration](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-developing-auto-configuration)｜[@Conditions](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-condition-annotations)