feat: add wizard to README

README.md

@@ -4,12 +4,15 @@
 
 **A library for secure smart contract development** written in Cairo for [Starknet](https://starkware.co/product/starknet/), a decentralized ZK Rollup.
 
-> **Warning**
+> [!WARNING]
 > This repo contains highly experimental code.
 > It has no code coverage checks.
 > It hasn't been audited.
 > **Use at your own risk.**
 
+> [!TIP]
+> :mage: **Not sure how to get started?** Check out [Contracts Wizard for Cairo](https://wizard.openzeppelin.com/cairo) — an interactive smart contract generator.
+
 ## Usage
 
 > **Warning**