Update README.md

Remove beta disclaimer

Author: ghalib

README.md

@@ -40,14 +40,6 @@ client = AsyncPolytomic(
 ```
 <!-- End Async Usage  -->
 
-<!-- Begin Status, generated by Fern  -->
-# Beta Status
-
-This SDK is in beta, and there may be breaking changes between versions without a major 
-version update. Therefore, we recommend pinning the package version to a specific version. 
-This way, you can install the same version each time without breaking changes.
-<!-- End Status  -->
-
 <!-- Begin Contributing, generated by Fern  -->
 # Contributing