chore(examples): add serve script command

examples/minimal/package.json

@@ -1,7 +1,9 @@
 {
   "private": true,
+  "name": "vitepress-example-minimal",
   "scripts": {
     "dev": "node ../../bin/vitepress dev",
-    "build": "node ../../bin/vitepress build"
+    "build": "node ../../bin/vitepress build",
+    "serve": "node ../../bin/vitepress serve"
   }
 }