[ISSUE #2635]📝Update README.md🔥 (#2636)

Author: mxsm

README.md

@@ -123,12 +123,10 @@ cargo run --bin rocketmq-broker-rust
 
 First, start the RocketMQ NameServer and Broker services.
 
-- [**Send a single message
-  **](https://github.com/mxsm/rocketmq-rust/blob/main/rocketmq-client/README.md#Send-a-single-message)
-
-- [**Send batch messages
-  **](https://github.com/mxsm/rocketmq-rust/blob/main/rocketmq-client/README.md#Send-batch-messages)
-
+- [**Send a single message**](https://github.com/mxsm/rocketmq-rust/blob/main/rocketmq-client/README.md#Send-a-single-message)
+  
+- [**Send batch messages**](https://github.com/mxsm/rocketmq-rust/blob/main/rocketmq-client/README.md#Send-batch-messages)
+  
 - [**Send RPC messages**](https://github.com/mxsm/rocketmq-rust/blob/main/rocketmq-client/README.md#Send-RPC-messages)
 
 [**For more examples, you can check here**](https://github.com/mxsm/rocketmq-rust/tree/main/rocketmq-client/examples)