docs: modify API key configuration instructions.

docs/README.md

@@ -22,6 +22,8 @@ This project consists of two parts, the client-side and the server-side:
 - Convenient tools, supporting one-click message and code block copying, as well as message editing.
 - Common command management, allowing users to store and edit their own common commands.
 - PWA, supporting installation to the desktop.
+- User Token Usage Statistics.
+- Supports configuring multiple API Keys.
 
 ### Server-side
 - The server-side has an administrative panel.

docs/guide/quick-start.md

@@ -107,7 +107,9 @@ Access the management panel at `http(s)://your.domain:9000/admin` or `http(s)://
 - username: **admin**
 - password: **password**
 
-Before starting a chat, you need to add an OpenAI API key. In the management panel, in the "Settings" section, there is a record named `openai_api_key`. Set the value to your API key.
+~~Before starting a chat, you need to add an OpenAI API key. In the management panel, in the "Settings" section, there is a record named `openai_api_key`. Set the value to your API key.~~
+
+In the latest version, a separate API Key management has been added to the admin panel, located under "Provider/Api keys". You can add multiple API Keys here, and the backend program will track the usage of each key's token and balance the usage based on token usage. **To enable this feature, you need to delete the previous "openai_api_key" setting.**
 
 Now you can access the client at `http(s)://your.domain` or `http://123.123.123.123` to start chatting.
 

docs/zh/README.md

@@ -21,6 +21,8 @@ ChatGPT UI 是一个非官方的 ChatGPT Web 客户端。它支持多用户，
 - 便捷的工具，支持一键复制消息和代码块，以及重新编辑消息等。
 - 常用指令管理，用户可存储和编辑自己的常用指令。
 - PWA，支持安装到桌面。
+- 用户 Token 使用量统计
+- 支持配置多个 API Key
 
 ### 服务端
 - 服务端拥有一个管理面板

docs/zh/guide/quick-start.md

@@ -107,7 +107,9 @@ docker-compose up --pull always -d
 
 默认密码: **password**
 
-在可以开始聊天之前，您需要添加一个 OpenAI 的 API 密钥。在管理面板的设置模型中，有一个名称为 `openai_api_key` 的记录，将值设置为您的 API 密钥。
+~~在可以开始聊天之前，您需要添加一个 OpenAI 的 API 密钥。在管理面板的设置模型中，有一个名称为 `openai_api_key` 的记录，将值设置为您的 API 密钥。~~
+
+在最新版本中，管理面板增加了一个独立的 API Key 的管理，位于管理面板的 `Provider/ Api keys`。你可以在这里添加多个 API Key，后端程序会统计每个 Key 的 token 使用量，并根据 token 使用量来平衡使用 Key。**想要这个功能生效，需要删除之前的`openai_api_key`设置**
 
 现在可以访问客户端地址 `http(s)://your.domain` 或 IP `http://123.123.123.123` 开始聊天。