feat: add README deprecation message

README.md

@@ -1,6 +1,8 @@
 <h1 align="center">⁂<br/>web3.storage</h1>
 <p align="center">Add a directory to web3.storage from an Action, and output it's IPFS Content ID.</p>
 
+> ⚠️ This repo will be archived on January 9, 2024 as this repo uses the old web3.storage API which will no longer take new uploads. Please use the [new client and API](https://github.com/web3-storage/w3up/tree/main/packages/w3up-client) for future usage of web3.storage. Documentation for the new client can be found [here](https://web3.storage/docs). You can learn more about these changes [here](https://blog.web3.storage/posts/the-data-layer-is-here-with-the-new-web3-storage).
+
 ## Example usage
 
 ```yaml