fix: update docs

Author: JackHamer09

README.md

@@ -85,6 +85,7 @@ See full documentation and advanced examples [here](./docs/transaction-info.md).
 
 ### 🔗 Supported chains
 
+Note: currently you might face issues interacting with custom ZK Chains. Fix is in progress.
 By default zkSync CLI bridge commands support zkSync Sepolia Testnet, zkSync Goerli Testnet and zkSync Mainnet. You can also use other networks by using one the options below:
 - Adding custom chain using `npx zksync-cli config chains` command.
 - Overwriting L1 and L2 RPC URLs. For example: `npx zksync-cli deposit --rpc=http://... --l1-rpc=http://...`