📝 more doc

README.md

@@ -6,8 +6,9 @@ A sample VocaDB API Java Client that is auto-generated by [OpenAPI](https://gith
 
 The original README file coming from this auto-generated client is in [README Original.md](./README%20Original.md)
 
-The auto-generation cli for this client is:
-```
+This client is generated by:
+
+``` shell
 openapi-generator-cli generate \
   --api-package cx.mikufan.vocadbapiclient.api \
   --model-package cx.mikufan.vocadbapiclient.model \
@@ -25,6 +26,18 @@ openapi-generator-cli generate \
   --library resttemplate \
   -o vocadb-api-client-resttemplate
 ```
-## How to use
+
+## Installation
 
 Refer to [jitpack](https://jitpack.io/#CXwudi/autogen-vocadb-openapi-java-client/1.0.0)
+
+## How to use
+
+Please read VocaDB API Usage [Rules](https://github.com/VocaDB/vocadb/wiki/Public-API#api-usage-rules) before using this API client.
+
+Refer to the [generated documentation](./README%20Original.md#Documentation%20for%20API%20Endpoints) for how to use this client
+
+## Notes
+
+- Highly recommended to set your custom User-Agent in `ApiClient` for VocaDB to identity you
+- This client probably won't work well for any non-GET requests. Base on VocaDB [document](https://github.com/VocaDB/vocadb/wiki/Public-API#authenticated-apis), you need to set some custom header to be able to use it.