add disclaimer

README.md

@@ -6,6 +6,10 @@ Music Provider Repository, provide a universal interface for different music ser
 
 please check [miaosic cmd tool](./cmd/miaosic/README.md)
 
+## How to Use
+
+please figure it out by yourself.
+
 ## Available Providers
 
 | Provider       | Search | Info | Url | Lyric | Playlist | loginable |
@@ -14,4 +18,27 @@ please check [miaosic cmd tool](./cmd/miaosic/README.md)
 | kuwo           | ✓      | ✓    | ✓   | ✓     | ✗        | ✗         |
 | kugou          | ✓      | ✓    | ✓ * | ✓     | ✓        | ✓         |
 | bilibili-video | ✓      | ✓    | ✓   | ✓     | ✓        | ✗         |
+| qq             | ✓*     | ✓*   | ✓*  | ✓*    | ✓*       | ✓         |
+
 > \* means require login
+
+## Disclaimer
+
+All APIs used in this project are  **publicly available** on the internet and not obtained through illegal means such as
+reverse engineering.
+
+The use of this project may involve access to copyrighted content. This project does **not** own or claim any rights to
+such content. **To avoid potential infringement**, all users are **required to delete any copyrighted data obtained
+through this project within 24 hours.**
+
+Any direct, indirect, special, incidental, or consequential damages (including but not limited to loss of goodwill, work
+stoppage, computer failure or malfunction, or any and all other commercial damages or losses) that arise from the use or
+inability to use this project are **solely the responsibility of the user**.
+
+This project is completely free and open-source, published on GitHub for global users for **technical learning and
+research purposes only**. This project does **not** guarantee compliance with local laws or regulations in all
+jurisdictions.
+
+**Using this project in violation of local laws is strictly prohibited.** Any legal consequences arising from
+intentional or unintentional violations are the user's responsibility. The project maintainers accept **no liability**
+for such outcomes.