Update docs

docs/deployment.md

@@ -108,6 +108,6 @@ Script is applicable for the verifying source code on the Blockscout explorer. S
 
 1. Update `hardhat.config.ts`. Find `orbit` field under `networks` and `customChains` and replace values with correct RPC and blockscout endpoints.
 2. `yarn install && yarn build`
-3. Set up `.env` - provide `PARENT_RPC`, `TOKEN_BRIDGE_CREATOR` (address of token bridge creator on parent chain) and `INBOX_ADDRESS`. 
+3. Set up `.env` - provide `BASECHAIN_RPC`, `L1_TOKEN_BRIDGE_CREATOR` (address of token bridge creator on parent chain) and `INBOX_ADDRESS`. 
 4. Optionally provide the `DEPLOYER_KEY`. That's the private key of any funded address on the Orbit chain. It is required if you want to get `UpgradeExecutor` and `aeWETH` verified. Due to specifics of cross-chain deployment used by token bridge creator, the only way to get `UpgradeExecutor` and `aeWETH` verified is to deploy dummy instances on the Orbit chain and verify them. That way the original instances will get automatically verified because of the deployed bytecode match. If `DEPLOYER_KEY` is not provided, this step will be skipped.
 5. Run script as following: `yarn run blockscout:verify --network orbit`