add next steps and pro-tips to getting-started guide

src/content/guides/getting-started.mdx

@@ -412,3 +412,16 @@ webpack-demo
 W> Do not compile untrusted code with webpack. It could lead to execution of malicious code on your computer, remote servers, or in the web browsers of the end users of your application.
 
 If you want to learn more about webpack's design, you can check out the [basic concepts](/concepts) and [configuration](/configuration) pages. Furthermore, the [API](/api) section digs into the various interfaces webpack offers.
+
+---
+
+### What's Next?
+
+Now that you've completed your first build, dive deeper into these core concepts:
+
+- **[Entry Points](/concepts/entry-points/):** Learn how webpack starts building your dependency graph.
+- **[Output](/concepts/output/):** Understand how to tell webpack where to emit your bundles.
+- **[Loaders](/concepts/loaders/):** See how to process non-JavaScript files like CSS or images.
+
+> **Pro Tip:** Keep your `webpack.config.js` clean and modular as your project grows!
+