fix typos (#4176)

* fix typos

* fix

docs/usage/code_overview.md

@@ -20,6 +20,6 @@ Below is an overview of the FastDeploy code structure and functionality organize
   - ```platforms```: Platform-specific modules for underlying hardware support.
   - ```scheduler```: Request scheduling module for large models.
   - ```metrics```: Core component for collecting, managing, and exporting Prometheus metrics, tracking key runtime performance data (e.g., request latency, resource utilization, successful request counts).
-  - ```splitwise```: Modules related to PD disaggragation deployment.
+  - ```splitwise```: Modules related to PD disaggregation deployment.
 - ```scripts```/```tools```: Utility scripts for FastDeploy operations (e.g., compilation, unit testing, code style fixes).
 - ```test```: Code for unit testing and validation.

docs/usage/log.md

@@ -30,7 +30,7 @@ By default, logs are stored in the `log` directory under the execution path. To
 * `cache_transfer_manager.log` : Logs startup parameters and received request information.
 * `launch_cache_manager.log` : Records cache transfer startup parameters and error messages.
 
-## PD Disaggragation Logs
+## PD Disaggregation Logs
 * `cache_messager.log` : Logs transmission protocols and messages used by the P instance.
 * `splitwise_connector.log` : Records data received from P/D instances and connection establishment details.