Add metadata extraction example

package.json

@@ -40,6 +40,7 @@
     "@eslint/js": "^9.22.0",
     "@microsoft/api-extractor": "^7.52.1",
     "@stylistic/eslint-plugin": "^4.2.0",
+    "@tailwindcss/vite": "^4.1.7",
     "@types/markdown-it-footnote": "^3.0.4",
     "@types/node": "^22.13.10",
     "esbuild": "^0.25.1",
@@ -47,6 +48,7 @@
     "markdown-it-footnote": "^4.0.0",
     "markdown-it-mathjax3": "^4.3.2",
     "mermaid": "^11.6.0",
+    "tailwindcss": "^4.1.7",
     "tsx": "^4.19.4",
     "typescript": "^5.8.2",
     "typescript-eslint": "^8.26.1",