[JavaScript] Fix licenseNames (#6605)

* [JavaScript] Fix licenseName in package.mustache

* Fix invalid SPDX license expression in resources/2_0

* Update JavaScript samples

samples/client/petstore/javascript-promise-es6/docs/AnotherFakeApi.md

@@ -0,0 +1,52 @@
+# SwaggerPetstore.AnotherFakeApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+Method | HTTP request | Description
+------------- | ------------- | -------------
+[**testSpecialTags**](AnotherFakeApi.md#testSpecialTags) | **PATCH** /another-fake/dummy | To test special tags
+
+
+<a name="testSpecialTags"></a>
+# **testSpecialTags**
+> Client testSpecialTags(body)
+
+To test special tags
+
+To test special tags
+
+### Example
+```javascript
+import SwaggerPetstore from 'swagger_petstore';
+
+let apiInstance = new SwaggerPetstore.AnotherFakeApi();
+
+let body = new SwaggerPetstore.Client(); // Client | client model
+
+apiInstance.testSpecialTags(body).then((data) => {
+  console.log('API called successfully. Returned data: ' + data);
+}, (error) => {
+  console.error(error);
+});
+
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**Client**](Client.md)| client model | 
+
+### Return type
+
+[**Client**](Client.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: application/json
+

samples/client/petstore/javascript-promise-es6/docs/FakeClassnameTags123Api.md

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+# SwaggerPetstore.FakeClassnameTags123Api
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+Method | HTTP request | Description
+------------- | ------------- | -------------
+[**testClassname**](FakeClassnameTags123Api.md#testClassname) | **PATCH** /fake_classname_test | To test class name in snake case
+
+
+<a name="testClassname"></a>
+# **testClassname**
+> Client testClassname(body)
+
+To test class name in snake case
+
+### Example
+```javascript
+import SwaggerPetstore from 'swagger_petstore';
+let defaultClient = SwaggerPetstore.ApiClient.instance;
+
+// Configure API key authorization: api_key_query
+let api_key_query = defaultClient.authentications['api_key_query'];
+api_key_query.apiKey = 'YOUR API KEY';
+// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
+//api_key_query.apiKeyPrefix = 'Token';
+
+let apiInstance = new SwaggerPetstore.FakeClassnameTags123Api();
+
+let body = new SwaggerPetstore.Client(); // Client | client model
+
+apiInstance.testClassname(body).then((data) => {
+  console.log('API called successfully. Returned data: ' + data);
+}, (error) => {
+  console.error(error);
+});
+
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**Client**](Client.md)| client model | 
+
+### Return type
+
+[**Client**](Client.md)
+
+### Authorization
+
+[api_key_query](../README.md#api_key_query)
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: application/json
+