update JS petstore samples

samples/client/petstore/javascript-es6/docs/FakeApi.md

@@ -11,6 +11,7 @@ Method | HTTP request | Description
 [**testClientModel**](FakeApi.md#testClientModel) | **PATCH** /fake | To test \"client\" model
 [**testEndpointParameters**](FakeApi.md#testEndpointParameters) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 [**testEnumParameters**](FakeApi.md#testEnumParameters) | **GET** /fake | To test enum parameters
+[**testInlineAdditionalProperties**](FakeApi.md#testInlineAdditionalProperties) | **POST** /fake/inline-additionalProperties | test inline additionalProperties
 [**testJsonFormData**](FakeApi.md#testJsonFormData) | **GET** /fake/jsonFormData | test json serialization of form data
 
 
@@ -385,6 +386,51 @@ No authorization required
  - **Content-Type**: */*
  - **Accept**: */*
 
+<a name="testInlineAdditionalProperties"></a>
+# **testInlineAdditionalProperties**
+> testInlineAdditionalProperties(param)
+
+test inline additionalProperties
+
+
+
+### Example
+```javascript
+import SwaggerPetstore from 'swagger_petstore';
+
+let apiInstance = new SwaggerPetstore.FakeApi();
+
+let param = null; // Object | request body
+
+
+apiInstance.testInlineAdditionalProperties(param, (error, data, response) => {
+  if (error) {
+    console.error(error);
+  } else {
+    console.log('API called successfully.');
+  }
+});
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **param** | **Object**| request body | 
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: Not defined
+
 <a name="testJsonFormData"></a>
 # **testJsonFormData**
 > testJsonFormData(param, param2)