docs: add guide on storefront production optimization tips (#13682)

* docs: add guide on storefront production optimization tips

* add vale exception

www/packages/tags/src/tags/storefront.ts

@@ -103,6 +103,10 @@ export const storefront = [
     "title": "Implement Express Checkout with Medusa",
     "path": "https://docs.medusajs.com/resources/storefront-development/guides/express-checkout"
   },
+  {
+    "title": "Storefront Production Optimization Tips",
+    "path": "https://docs.medusajs.com/resources/storefront-development/production-optimizations"
+  },
   {
     "title": "Show Product Categories in Storefront",
     "path": "https://docs.medusajs.com/resources/storefront-development/products/categories/list"