feat(website): update home page to showcase CherryPick DI documentation

- Replaced the main action button text with 'Explore CherryPick Documentation 🍒' instead of 'Docusaurus Tutorial'.
- Updated the button link to target /docs/intro (main docs entry point).
- Changed <Layout> props:
  - Page title now uses project title only (siteConfig.title)
  - Added a CherryPick-related site description for better SEO and context.
- The homepage is now tailored to reflect CherryPick's purpose as a Dart & Flutter DI library instead of Docusaurus boilerplate.

website/docs/getting-started.md

@@ -0,0 +1,27 @@
+---
+sidebar_position: 3
+---
+
+# Getting Started
+
+Here is a minimal example that registers and resolves a dependency:
+
+```dart
+import 'package:cherrypick/cherrypick.dart';
+
+class AppModule extends Module {
+  @override
+  void builder(Scope currentScope) {
+    bind<ApiClient>().toInstance(ApiClientMock());
+    bind<String>().toProvide(() => "Hello, CherryPick!");
+  }
+}
+
+final rootScope = CherryPick.openRootScope();
+rootScope.installModules([AppModule()]);
+
+final greeting = rootScope.resolve<String>();
+print(greeting); // prints: Hello, CherryPick!
+
+await CherryPick.closeRootScope();
+```