diff --git a/IV. Spring Boot features/29. Working with NoSQL technologies.md b/IV. Spring Boot features/29. Working with NoSQL technologies.md
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--- a/IV. Spring Boot features/29. Working with NoSQL technologies.md	
+++ b/IV. Spring Boot features/29. Working with NoSQL technologies.md	
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 ### 29. 使用NoSQL技术
-Spring Data提供其他项目，用来帮你使用各种各样的NoSQL技术，包括[MongoDB](http://projects.spring.io/spring-data-mongodb/), [Neo4J](http://projects.spring.io/spring-data-neo4j/), [Elasticsearch](https://github.com/spring-projects/spring-data-elasticsearch/), [Solr](http://projects.spring.io/spring-data-solr/), [Redis](http://projects.spring.io/spring-data-redis/), [Gemfire](http://projects.spring.io/spring-data-gemfire/), [Couchbase](http://projects.spring.io/spring-data-couchbase/)和[Cassandra](http://projects.spring.io/spring-data-cassandra/)。Spring Boot为Redis, MongoDB, Elasticsearch, Solr和Gemfire提供自动配置。你可以充分利用其他项目，但你需要自己配置它们。具体查看[projects.spring.io/spring-data.](http://projects.spring.io/spring-data/)中合适的参考文档。
+Spring Data提供其他项目，用来帮你使用各种各样的NoSQL技术，包括[MongoDB](http://projects.spring.io/spring-data-mongodb/), [Neo4J](http://projects.spring.io/spring-data-neo4j/), [Elasticsearch](https://github.com/spring-projects/spring-data-elasticsearch/), [Solr](http://projects.spring.io/spring-data-solr/), [Redis](http://projects.spring.io/spring-data-redis/), [Gemfire](http://projects.spring.io/spring-data-gemfire/), [Couchbase](http://projects.spring.io/spring-data-couchbase/)和[Cassandra](http://projects.spring.io/spring-data-cassandra/)。Spring Boot为Redis, MongoDB, Elasticsearch, Solr和Gemfire提供自动配置。你可以充分利用其他项目，但你需要自己配置它们。具体查看[projects.spring.io/spring-data](http://projects.spring.io/spring-data/)中合适的参考文档。