docs: enhance Documentation (#70)

* docs: improve configuration and usage examples for

- Added a section for quick setup using  without additional configuration.
- Highlighted the importance of specifying  to connect to existing collections.
- Updated  examples with simplified schemas.

* Update README.md

README.md

@@ -27,10 +27,116 @@ export default defineNuxtConfig({
 })
 ```
 
+### Configuration
+
+You can configure the module by adding a `mongoose` section to your `nuxt.config` file:
+
+```ts
+export default defineNuxtConfig({
+  mongoose: {
+    uri: 'process.env.MONGODB_URI',
+    options: {},
+    modelsDir: 'models',
+  },
+})
+```
+
+By default, `nuxt-mongoose` will auto-import your schemas from the `models` directory in the `server` directory. You can change this behavior by setting the `modelsDir` option.
+
+---
+
+#### 🛠️ **Quick Setup Without Configuration**
+
+If you prefer to use the default configuration, skip adding the `mongoose` section to your `nuxt.config.ts` file. Simply provide your MongoDB connection URI in a `.env` file like this:
+
+```env
+MONGODB_URI="mongodb+srv://username:password@cluster0.mongodb.net/<database-name>?retryWrites=true&w=majority"
+```
+
+> 🔹 Replace `username`, `password`, and `<database name>` with your MongoDB credentials and database name.
+
+That's it! The module will automatically use the `MONGODB_URI` and default settings for your connection. No additional configuration is required.
+
+---
+
+*For more details about connection options, check out the [Mongoose documentation](https://mongoosejs.com/docs/connections.html#options).*
+
+
+## API
+
+### defineMongooseConnection
+
+This function creates a new Mongoose connection. Example usage:
+
+```ts
+import { defineMongooseConnection } from '#nuxt/mongoose'
+
+export const connection = defineMongooseConnection('mongodb://127.0.0.1/nuxt-mongoose')
+```
+
+### defineMongooseModel
+
+This function creates a new Mongoose model with schema. Example usage:
+
+```ts
+import { defineMongooseModel } from '#nuxt/mongoose'
+
+export const User = defineMongooseModel('User', {
+  name: {
+    type: String,
+    required: true,
+  },
+})
+```
+
+**or you could use it like:**
+
+```ts
+export const User = defineMongooseModel({
+  name: 'User',
+  schema: {
+    name: {
+      type: String,
+      required: true,
+    },
+  },
+})
+```
+
+
+#### Connecting to an Existing Collection
+
+If you need to connect to an **existing collection** in the database, you must specify the collection name using the `options` field. Otherwise, Mongoose will create a new collection based on the model name.
+
+```ts
+import { defineMongooseModel } from '#nuxt/mongoose'
+
+export const ProductSchema = defineMongooseModel({
+  name: 'Product',
+  schema: {
+    name: { type: String, required: true },
+    price: { type: Number, required: true },
+    stock: { type: Number, default: 0 },
+  },
+  options: {
+    collection: 'products_collection', // Ensure it uses the correct collection name
+  },
+})
+```
+
+---
+
+#### Important Notes
+
+- Using the `options.collection` field ensures that the model interacts with the specified collection (`products_collection` in the example above).
+- Without this option, a new collection will be created using the pluralized version of the model name (e.g., `Products`).
+
+
 ### Configuration
 
 For detailed [configuration](https://docs.arashsheyda.me/nuxt-mongoose/getting-started/configuration) and usage instructions, please refer to our [documentation](https://docs.arashsheyda.me/nuxt-mongoose).
 
+
 ## License
 
 [MIT License](./LICENSE)