docs: reference to storefronts doc

Author: michaelKurowski

docs/content/4.sdk/2.getting-started/2.middleware-module.md

@@ -128,7 +128,7 @@ The `middlewareModule` accepts the following options:
 - `defaultRequestConfig` - (Optional) default request config for each request,
 - `httpClient` - (Optional) a custom HTTP client,
 - `errorHandler` - (Optional) a custom error handler for HTTP requests.
-- `cdnCacheBustingId` - (Optional) a middleware version identifier that will be attached to all `GET` requests for the sake of bypassing the CDN cache stored for a different version of the middleware.
+- `cdnCacheBustingId` - (Optional) a middleware version identifier that will be attached to all `GET` requests for the sake of bypassing the CDN cache stored for a different version of the middleware. [See guide about caching middleware responses here.](/storefront/features/cdn/caching-api-responses)
 
 Example configuration: