docs: add caching callout

docs/content/3.middleware/2.guides/5.caching.md

@@ -1,8 +1,15 @@
 # Caching
 
+::warning
+#title
+This guide is for setting cookie headers in in your Alokai application
+#default
+If you are looking to enable CDN caching, please contact the Alokai team.
+::
+
 Caching is another powerful technique that can boost the performance and reliability of your Alokai middleware application. In the following guide, we will cover the caching of responses from GET endpoints that can be cached.
 
-# What are the requirements to cache an endpoint's response?
+## What are the requirements to cache an endpoint's response?
 
 If you've created or modified an endpoint and wish to cache its response, the endpoint must: