docs: add assignments and seek offset

docs/en/14-reference/03-connector/06-rust.mdx

@@ -499,6 +499,18 @@ The TMQ is of [futures::Stream](https://docs.rs/futures/latest/futures/stream/in
 }
 ```
 
+Get assignments：
+
+```rust
+let assignments = consumer.assignments().await.unwrap();
+```
+
+Seek offset：
+
+```rust
+consumer.offset_seek(topic, vgroup_id, offset).await;
+```
+
 Unsubscribe:
 
 ```rust
@@ -513,7 +525,7 @@ The following parameters can be configured for the TMQ DSN. Only `group.id` is m
 - `enable.auto.commit`: Automatically commits. This can be enabled when data consistency is not essential.
 - `auto.commit.interval.ms`: Interval for automatic commits.
   
-For more information, see [GitHub sample file](https://github.com/taosdata/taos-connector-rust/blob/main/examples/subscribe.rs).
+For more information, see [GitHub sample file](https://github.com/taosdata/TDengine/blob/3.0/docs/examples/rust/nativeexample/examples/subscribe_demo.rs).
 
 For information about other structure APIs, see the [Rust documentation](https://docs.rs/taos).
 

docs/zh/08-connector/26-rust.mdx

@@ -502,6 +502,18 @@ TMQ 消息队列是一个 [futures::Stream](https://docs.rs/futures/latest/futur
 }
 ```
 
+获取消费进度：
+
+```rust
+let assignments = consumer.assignments().await.unwrap();
+```
+
+按照指定的进度消费：
+
+```rust
+consumer.offset_seek(topic, vgroup_id, offset).await;
+```
+
 停止订阅：
 
 ```rust
@@ -516,7 +528,7 @@ consumer.unsubscribe().await;
 - `enable.auto.commit`: 当设置为 `true` 时，将启用自动标记模式，当对数据一致性不敏感时，可以启用此方式。
 - `auto.commit.interval.ms`: 自动标记的时间间隔。
   
-完整订阅示例参见 [GitHub 示例文件](https://github.com/taosdata/taos-connector-rust/blob/main/examples/subscribe.rs).
+完整订阅示例参见 [GitHub 示例文件](https://github.com/taosdata/TDengine/blob/3.0/docs/examples/rust/nativeexample/examples/subscribe_demo.rs).
 
 其他相关结构体 API 使用说明请移步 Rust 文档托管网页：<https://docs.rs/taos>。