update readme

Author: Pooya Parsa

README.md

@@ -336,8 +336,11 @@ You can easily integrate Axios with [Proxy Module](https://github.com/nuxt-commu
 **Note:** It is not required to manually register `@nuxtjs/proxy` module.
 
 **Note:** `/api/` will be added to all requests to the API end point. If you need to remove it use `pathRewrite`:
+
 ```js
-{ '/api/': 'http://api.example.com', pathRewrite: { '^/api/', '' } }
+proxy: {
+  '/api/': { target: 'http://api.example.com', pathRewrite: {'^/api/', ''} }
+}
 ```
 
 ### `credentials`