Add missing title header

Author: bradleycamacho

pages/stack/interop/tutorials/convert-erc20.mdx

@@ -12,6 +12,8 @@ The SuperchainERC20 standard is ready for production use with active Mainnet dep
 Please note that the OP Stack interoperability upgrade, required for crosschain messaging, is currently still in active development.
 </Callout>
 
+# Convert an ERC20 token into a SuperchainERC20 token
+
 The SuperchainERC20 contract implements ERC-7802 to enable asset interoperability within the Superchain. This tutorial guides you through converting an existing ERC20 token into a SuperchainERC20 token.
 
 If you'd like a guided walkthrough, check out our [tutorial video](https://x.com/i/status/1866095114374045969) instead.