docs: added reference for JS Client (#1629)

* added reference for JS Client

* added reference for JS Client

* added reference for JS Client

docs/content/references/js-client/classes/RegionsResource.md

@@ -0,0 +1,52 @@
+# Class: RegionsResource
+
+## Hierarchy
+
+- `default`
+
+  ↳ **`RegionsResource`**
+
+## Methods
+
+### list
+
+▸ **list**(`customHeaders?`): [`ResponsePromise`](../modules/internal.md#responsepromise)<[`StoreRegionsListRes`](../modules/internal.md#storeregionslistres)\>
+
+**`description`** Retrieves a list of regions
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `customHeaders` | [`Record`](../modules/internal.md#record)<`string`, `any`\> |
+
+#### Returns
+
+[`ResponsePromise`](../modules/internal.md#responsepromise)<[`StoreRegionsListRes`](../modules/internal.md#storeregionslistres)\>
+
+#### Defined in
+
+[packages/medusa-js/src/resources/regions.ts:11](https://github.com/medusajs/medusa/blob/2eb2126f/packages/medusa-js/src/resources/regions.ts#L11)
+
+___
+
+### retrieve
+
+▸ **retrieve**(`id`, `customHeaders?`): [`ResponsePromise`](../modules/internal.md#responsepromise)<[`StoreRegionsRes`](../modules/internal.md#storeregionsres)\>
+
+**`description`** Retrieves a region
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `id` | `string` | is required |
+| `customHeaders` | [`Record`](../modules/internal.md#record)<`string`, `any`\> |  |
+
+#### Returns
+
+[`ResponsePromise`](../modules/internal.md#responsepromise)<[`StoreRegionsRes`](../modules/internal.md#storeregionsres)\>
+
+#### Defined in
+
+[packages/medusa-js/src/resources/regions.ts:22](https://github.com/medusajs/medusa/blob/2eb2126f/packages/medusa-js/src/resources/regions.ts#L22)