fix: prevent CI trigger from docs/samples/webpack-getting-started (#6145)

* README updated
* renamed package.json to _sample_package.json
* removed package-lock.json

docs/samples/webpack-getting-started/README.md

@@ -1,9 +1,14 @@
 
-Demo of Swagger UI with Webpack.
+### Demo of Swagger UI with Webpack.
 
-Includes CSS and OAuth configuration.
+This `webpack-getting-started` sample is for reference only.
 
-Usage
+It includes CSS and OAuth configuration.
 
+`_sample_package.json` is a placeholder sample. You should rename this file, per `Usage` section below, and you should also verify and update this sample's `@latest` compared to the `swagger-ui@latest`
+
+
+#### Usage
+    rename `_sample_package.json` to `package.json`
     npm install
     npm start