docs(readme): rewrite README.md

Author: helltractor

README.md

@@ -1,21 +1,18 @@
 # Java-Learning
 
-## [demo-aspectj](./demo-aspectj)
-
-## [demo-consul](./demo-consul)
-
-## [demo-mybatis](./demo-mybatis)
-
-## [demo-redis](./demo-redis)
-
-## [demo-reflection](./demo-reflection)
-
-## [demo-stream](./demo-stream)
-
-## [demo-thread](./demo-thread)
-
-## [pattern-design](./pattern-design)
-
-## [rocketmq](./rocketmq)
-
-## [sentinel](./sentinel)
+## 项目模块
+
+- [build](./build) —— 容器构建与部署示例
+- [demo-aspectj](./demo-aspectj) —— AOP 编程示例
+- [demo-consul](./demo-consul) —— 基于 Consul 的服务注册与发现
+- [demo-mybatis](./demo-mybatis) —— MyBatis 数据库操作示例
+- [demo-redis-spring-data](./demo-redis-spring-data) —— 使用 Spring Data Redis 进行数据存储
+- [demo-redis-lettuce](./demo-redis-lettuce) —— 基于 Lettuce 的 Redis 交互
+- [demo-reflection](./demo-reflection) —— Java 反射机制示例
+- [demo-stream](./demo-stream) —— Java Stream API 操作
+- [demo-thread](./demo-thread) —— 多线程与并发编程示例
+- [demo-util](./demo-util) —— 常用工具类集合
+- [demo-kafka](./demo-kafka) —— Kafka 消息队列示例
+- [pattern-design](./pattern-design) —— 设计模式实践
+- [rocketmq](./rocketmq) —— RocketMQ 消息队列示例
+- [sentinel](./sentinel) —— Sentinel 限流与熔断示例