📝 Add extra information about why the playground only work on Chrome in dev mode

Author: amoutonbrady

README.md

@@ -29,7 +29,7 @@ $ pnpm run dev
 $ pnpm run build
 ```
 
-:warning: Make sure to use Chromium-based browser for dev mode. Firefox doesn't work.
+:warning: Make sure to use Chromium-based browser for dev mode. Firefox doesn't work due to to [vite's limitation with web worker](https://vitejs.dev/guide/features.html#web-workers).
 
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