Remove untested warning in readme

Author: james-pre

readme.md

@@ -1,10 +1,5 @@
 # ZenFS Emscripten Backend
 
-> [!WARNING]
-> This package has not been extensively tested and may not be stable.
->
-> If you find a bug, please report it. Thanks!
-
 [ZenFS](https://github.com/zen-fs/core) backend for usage with Emscripten.
 
 For more information, see the [docs](https://zen-fs.github.io/emscripten).