docs: update README

README.md

@@ -13,7 +13,7 @@ This is rotom, a high performance, low latency tiny Redis Server written in Go.
 1. Implements the AeLoop single-threaded event loop from Redis using the epoll network model.
 2. Compatible with the Redis RESP protocol, allowing any Redis client to connect to rotom.
 3. Implements data structures such as dict, list, map, zipmap, set, zipset, and zset.
-4. Supports AOF.
+4. Supports RDB & AOF.
 5. Supports 20+ commonly used commands.
 6. Supports execute lua scripts.
 
@@ -109,7 +109,7 @@ Alternatively, you can run it in a container. First, build the Docker image by r
 
 ```
 REPOSITORY       TAG           IMAGE ID       CREATED         SIZE
-rotom            latest        22f42ce9ae0e   8 seconds ago   20.5MB
+rotom            latest        e93cf2060e5f   13 seconds ago  40.2MB
 ```
 
 Then, start the container:

README_CN.md

@@ -13,7 +13,7 @@
 1. 基于 epoll 网络模型，还原了 Redis 中的 AeLoop 单线程事件循环
 2. 兼容 Redis RESP 协议，你可以使用任何 redis 客户端连接 rotom
 3. 实现了 dict, list, map, zipmap, set, zipset, zset 数据结构
-4. AOF 支持
+4. RDB 和 AOF 持久化支持
 5. 支持 20 多种常用命令
 6. 支持执行 lua 脚本
 
@@ -109,7 +109,7 @@ $ go run .
 
 ```
 REPOSITORY       TAG           IMAGE ID       CREATED         SIZE
-rotom            latest        22f42ce9ae0e   8 seconds ago   20.5MB
+rotom            latest        e93cf2060e5f   13 seconds ago  40.2MB
 ```
 
 然后启动容器：