update readme

README.md

@@ -12,9 +12,8 @@ For more information: https://hackmd.io/@Vid201/aa-bundler-rust
 
 ## Prerequisites
 
-1. Ethereum JSON-RPC API with enabled [`debug_traceCall`](https://geth.ethereum.org/docs/interacting-with-geth/rpc/ns-debug#debug_tracecall) (currently implemented only in [Geth](https://github.com/ethereum/go-ethereum) and [Erigon](https://github.com/ledgerwatch/erigon)). For testing purposes, you can setup [private Geth node](https://github.com/krzkaczor/geth-private-node).  
+1. Ethereum execution client JSON-RPC API with enabled [`debug_traceCall`](https://geth.ethereum.org/docs/interacting-with-geth/rpc/ns-debug#debug_tracecall). For production, you can use [Geth](https://github.com/ethereum/go-ethereum) or [Erigon](https://github.com/ledgerwatch/erigon). For testing purposes, you can use [Anvil](https://github.com/foundry-rs/foundry/tree/master/anvil#anvil), which provides enough functionalities of execution clients like Geth. To install Anvil, use [foundryup](https://getfoundry.sh/)
 2. [solc](https://docs.soliditylang.org/en/v0.8.17/installing-solidity.html) >=0.8.12
-3. For testing purposes, we need [Anvil](https://github.com/foundry-rs/foundry/tree/master/anvil#anvil) which would provide enough functions of execution client like Geth. To install Anvil, you can setup with [foundryup](https://getfoundry.sh/)
 
 ## How to run?