Add callout to directives guide (#75)

Author: pranaygp

docs/content/docs/how-it-works/code-transform.mdx

@@ -4,8 +4,13 @@ title: How the Directives Work
 
 # How the Directives Work
 
+<Callout>
+This is an advanced guide that dives into internals of the Workflow DevKit directive and is not required reading to use workflows. To simply use the Workflow DevKit, check out the [getting started](/docs/getting-started) guides for your framework.
+</Callout>
+
 Workflows use special directives to mark code for transformation by the Workflow DevKit compiler. This page explains how `"use workflow"` and `"use step"` directives work, what transformations are applied, and why they're necessary for durable execution.
 
+
 ---
 
 ## Directives Overview