Add clean up instructions

Signed-off-by: racket2000 <[email protected]>

Author: racket2000

lib/bitcoin-core/README.md

@@ -324,6 +324,20 @@ Keep your node healthy by monitoring logs and configurations:
 - Regularly rotate secrets and always remove old `rpcauth` entries before restarting the node.
 - Use **CloudWatch** to monitor node performance and detect issues promptly.
 
+---
+
+### Cleaning up
+To destroy the single node and HA configurations, you can run the following commands:
+
+```
+#Delete Single Node Infra
+cdk destroy SingleNodeBitcoinCoreStack
+
+#Delete HA Infra
+cdk destroy HABitcoinCoreNodeStack
+```
+
+
 ---
 
 ### Conclusion