Put warning in a callout as per @sbvegan

Author: qbzzt

pages/stack/interop/tutorials/transfer-superchainERC20.mdx

@@ -15,17 +15,17 @@ import { Callout, Steps } from 'nextra/components'
 
 This guide shows how to transfer `SuperchainERC20` tokens between chains programmatically.
 
-<Callout>
-  This tutorial provides step-by-step instructions for transferring `SuperchainERC20` tokens using code.
+Note that this tutorial provides step-by-step instructions for transferring `SuperchainERC20` tokens using code.
 
-  *   For a detailed behind-the-scenes explanation, [see the explainer](../superchain-erc20#how-it-works).
-  *   For a sample UI that bridges a `SuperchainERC20` token, [see here](https://interop-alpha-app.superchain.tools/).
-</Callout>
+*   For a detailed behind-the-scenes explanation, [see the explainer](../superchain-erc20#how-it-works).
+*   For a sample UI that bridges a `SuperchainERC20` token, [see here](https://interop-alpha-app.superchain.tools/).
 
 ## Overview
 
-**Warning:** Always verify your addresses and amounts before sending transactions.
-Cross-chain transfers cannot be reversed.
+<Callout type="warning">
+  Always verify your addresses and amounts before sending transactions.
+  Cross-chain transfers cannot be reversed.
+</Callout>
 
 ### What you'll build