docs(README): 更新文档以反映新功能和代码结构

-描述了将 OpenAPI 规范声明文件转换为类型安全的基于 Axios 的函数
- 添加了对 zod 的支持用于接口出入参校验
- 增加了生成原 Schema 文件和中间处理的 Schema 文件的功能
- 提到了即将完成的接口 Mock 功能- 更新了示例代码和文件结构说明

Author: cloudcome

README.md

@@ -8,13 +8,14 @@ OpenAPI(2.0/3.0/3.1) Schema → Type-safe Axios
 [![Codacy Badge](https://app.codacy.com/project/badge/Coverage/4fa1acaeb717469caddfe21a84c50bb2)](https://app.codacy.com/gh/FrontEndDev-org/openapi-axios/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_coverage)
 [![npm version](https://badge.fury.io/js/openapi-axios.svg)](https://npmjs.com/package/openapi-axios)
 
-将 OpenAPI 规范声明文件转换为类型声明和可执行函数（基于 Axios）。与其他同类工具相比，具有以下特点：
+将 OpenAPI 规范声明文件转换为类型安全的基于 Axios 的函数。
 
 - 😆 同时支持 [openAPI](https://www.openapis.org/) 2.0、3.0、3.1 规范
-- 😉 生成的每个 API 都是一个函数，用于在构建时轻松进行 tree shaking
-- 😎 与最流行的 HTTP 客户端 [axios](https://axios-http.com/) 进行适配
-- 🤗 轻松与本地请求客户端集成，例如在本地项目中创建的 Axios 实例（通常我们在本地都是需要自定义一些拦截器什么的）
-- 😁 易于使用，易于学习，类型安全
+- 😎 与最流行的 HTTP 客户端 [axios](https://axios-http.com/) 进行适配，可轻松与本地 Axios 实例集成
+- 😉 生成的每个 API 都是一个类型安全的函数，用于在构建时轻松进行 tree shaking
+- 🤔 基于 [zod](https://zod.dev/) 支持了接口出入参的校验（可选）
+- 😋 支持生成原 Schema 文件以及中间处理的 Schema 文件（可选）
+- 🤗 支持接口 Mock（待完成）
 
 # 安装
 
@@ -38,104 +39,120 @@ const { defineConfig } = require('openapi-axios');
  * @ref https://github.com/FrontEndDev-org/openapi-axios
  */
 module.exports = defineConfig({
-  modules: {
-    '.petStore3': 'https://petstore3.swagger.io/api/v3/openapi.json'
+  documents: {
+    petStore3: 'https://petstore3.swagger.io/api/v3/openapi.json'
   },
 });
 ```
 
-## 生成 API 文件
+## 生成 OpenAPI 相关文件
 ```shell
 # 根据配置文件生成typescript文件
 npx openapi-axios
 
-# 将会生成 src/apis/.petStore3.ts 文件
+# 将会生成 src/apis/petStore3.ts 文件
+# 将会生成 src/apis/petStore3.type.ts 文件
 ```
 
 <details>
-<summary>【点击展开】生成的文件将导出为一个函数和一个操作，如下所示</summary>
+<summary>src/apis/petStore3.ts【点击展开】</summary>
 
 ```ts
 /**
- * @title Swagger Petstore - OpenAPI 3.1
- * @version 1.0.6
+ * @title Swagger Petstore - OpenAPI 3.0
+ * @version 1.0.19
  * @contact <apiteam@swagger.io>
- * @description This is a sample Pet Store Server based on the OpenAPI 3.1 specification.
-You can find out more about
-Swagger at [http://swagger.io](http://swagger.io).
- * @summary Pet Store 3.1
- * @see {@link http://swagger.io Find out more about Swagger}
+ * @description This is a sample Pet Store Server based on the OpenAPI 3.0 specification.  You can find out more about
+ * Swagger at [http://swagger.io](http://swagger.io). In the third iteration of the pet store, we've switched to the design first approach!
+ * You can now help us improve the API whether it's by making changes to the definition itself or to the code.
+ * That way, with time, we can improve the API in general, and expose some of the new features in OAS3.
+ *
+ * Some useful links:
+ * - [The Pet Store repository](https://github.com/swagger-api/swagger-petstore)
+ * - [The source API definition for the Pet Store](https://github.com/swagger-api/swagger-petstore/blob/master/src/main/resources/openapi.yaml)
  */
 
-import type { AxiosPromise, AxiosRequestConfig } from 'axios';
+import type { AxiosRequestConfig, AxiosResponse } from 'axios';
+import type * as Type from './pet-store.type.ts';
 import axios from 'axios';
 
+/**
+ * @description Add a new pet to the store
+ * @summary Add a new pet to the store
+ * @see pet Everything about your Pets {@link http://swagger.io Find out more}
+ * @param data Create a new pet in the store
+ * @param [config] request config
+ * @returns Successful operation
+ */
+export async function addPet(data: Type.AddPetData, config?: AxiosRequestConfig): Promise<AxiosResponse<Type.AddPetResponse>> {
+  return axios({
+    method: 'POST',
+    url: `/pet`,
+    data,
+    ...config
+  });
+}
+
 // ... 省略 ...
+```
+</details>
 
+<details>
+<summary>src/apis/petStore3.type.ts【点击展开】</summary>
+
+```ts
 /**
- * @description Pet
+ * @title Swagger Petstore - OpenAPI 3.0
+ * @version 1.0.19
+ * @contact <apiteam@swagger.io>
+ * @description This is a sample Pet Store Server based on the OpenAPI 3.0 specification.  You can find out more about
+ * Swagger at [http://swagger.io](http://swagger.io). In the third iteration of the pet store, we've switched to the design first approach!
+ * You can now help us improve the API whether it's by making changes to the definition itself or to the code.
+ * That way, with time, we can improve the API in general, and expose some of the new features in OAS3.
+ *
+ * Some useful links:
+ * - [The Pet Store repository](https://github.com/swagger-api/swagger-petstore)
+ * - [The source API definition for the Pet Store](https://github.com/swagger-api/swagger-petstore/blob/master/src/main/resources/openapi.yaml)
  */
+
+// ... 省略 ...
+
 export interface Pet {
   /**
    * @format int64
    * @example 10
    */
   id?: number;
-  /**
-   * @description Pet Category
-   */
-  category?: Category;
   /**
    * @example doggie
    */
   name: string;
-  photoUrls: string;
-  tags?: Tag;
+  category?: Category;
+  photoUrls: Array<string>;
+  tags?: Array<Tag>;
   /**
    * @description pet status in the store
    */
-  status?: 'available' | 'pending' | 'sold';
-  /**
-   * @format int32
-   * @example 7
-   */
-  availableInstances?: number;
-  petDetailsId?: unknown;
-  petDetails?: unknown;
+  status?: ('available' | 'pending' | 'sold');
 }
 
 // ... 省略 ...
 
-/**
- * @description Update an existing pet by Id
- * @summary Update an existing pet
- * @see pet Everything about your Pets {@link http://swagger.io Find out more}
- * @param data Pet object that needs to be updated in the store
- * @param [config] request config
- * @returns Successful operation
- */
-export async function updatePet(data: Pet, config?: AxiosRequestConfig): AxiosPromise<Pet> {
-  return axios({
-    method: 'put',
-    url: `/pet`,
-    data,
-    ...config,
-  });
-}
+export type AddPetData = Pet;
+export type AddPetResponse = Pet;
 
 // ... 省略 ...
 ```
 </details>
 
-然后你可以直接导入一个函数并使用它。 调用接口就像调用本地函数一样简单。
+然后你可以直接导入一个函数来使用它：
 
 ```ts
-import { updatePet } from '@/apis/.petStore3';
+import { addPet } from '@/apis/.petStore3';
 
 // 类型安全
-const { data: pet } = await updatePet({
+const { data: pet } = await addPet({
   name: 'MyCat',
-  photoUrls: ['photo1', 'photo2']
 });
 
 // 类型安全