Archive the repo and document that it has been moved to the `wasmerio/wamser` repo

Thanks for creating these amazing tools!

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I believe that many people simply think this project is dead, e.g., #46 and this discord message:

<img width="663" alt="Image" src="https://github.com/user-attachments/assets/01b9c60a-1910-4fb9-b1a7-ffb5e35b81ff" />

It would be great to archive the repo and document in the README that this project is alive and has been moved to the `wasmer` repo.