chore: readme

Author: reez

README.md

@@ -14,7 +14,7 @@ The `main` branch of BDK Swift Example Wallet uses [bdk-swift](https://github.co
 
 ## Functionality
 
-*This is an experimental work in progress.*
+*This is an experimental work in progress and may contain both known and unknown bugs. This wallet is intended for testing and research purposes only, as such it is intended for test networks.*
 
 Create a wallet, send and receive.