chore: update examples for v3.9 (#11429)

docs/intro.md

@@ -14,7 +14,7 @@ Or **try Docusaurus immediately** with **[docusaurus.new](https://docusaurus.new
 
 ### What you'll need
 
-- [Node.js](https://nodejs.org/en/download/) version 18.0 or above:
+- [Node.js](https://nodejs.org/en/download/) version 20.0 or above:
   - When installing Node.js, you are recommended to check all checkboxes related to dependencies.
 
 ## Generate a new site

docusaurus.config.js

@@ -31,7 +31,6 @@ const config = {
   projectName: 'docusaurus', // Usually your repo name.
 
   onBrokenLinks: 'throw',
-  onBrokenMarkdownLinks: 'warn',
 
   // Even if you don't use internationalization, you can use this field to set
   // useful metadata like html lang. For example, if your site is Chinese, you
@@ -80,6 +79,9 @@ const config = {
     ({
       // Replace with your project's social card
       image: 'img/docusaurus-social-card.jpg',
+      colorMode: {
+        respectPrefersColorScheme: true,
+      },
       navbar: {
         title: 'My Site',
         logo: {

package.json

@@ -15,8 +15,8 @@
     "dev": "docusaurus start"
   },
   "dependencies": {
-    "@docusaurus/core": "3.8.0",
-    "@docusaurus/preset-classic": "3.8.0",
+    "@docusaurus/core": "3.9.0",
+    "@docusaurus/preset-classic": "3.9.0",
     "@mdx-js/react": "^3.0.0",
     "clsx": "^2.0.0",
     "prism-react-renderer": "^2.3.0",
@@ -24,8 +24,8 @@
     "react-dom": "^19.0.0"
   },
   "devDependencies": {
-    "@docusaurus/module-type-aliases": "3.8.0",
-    "@docusaurus/types": "3.8.0"
+    "@docusaurus/module-type-aliases": "3.9.0",
+    "@docusaurus/types": "3.9.0"
   },
   "browserslist": {
     "production": [
@@ -40,7 +40,7 @@
     ]
   },
   "engines": {
-    "node": ">=18.0"
+    "node": ">=20.0"
   },
   "description": "Docusaurus example project"
 }