feat(orc-483): add DELEGATION_CONTRACT_ADDRESS to readme

Author: chasingrainbows

README.md

@@ -220,6 +220,7 @@ In manual mode all sleeps are disabled and `ALLOW_REPORTING_IN_BUNKER_MODE` is T
 | `KEYS_API_URI`                                         | URI of the Keys API                                                                                                                                                      | True                | `http://localhost:8080`        |
 | `LIDO_LOCATOR_ADDRESS`                                 | Address of the Lido contract                                                                                                                                             | True                | `0x1...`                       |
 | `STAKING_MODULE_ADDRESS`                               | Address of the Staking Module contract                                                                                                                                   | Staking Module only | `0x1...`                       |
+| `DELEGATION_CONTRACT_ADDRESS`                          | Address of the delegation contract. When set, oracle calls are routed through this contract                                                                              | False               | `0x1...`                       |
 | `MEMBER_PRIV_KEY`                                      | Private key of the Oracle member account                                                                                                                                 | False               | `0x1...`                       |
 | `MEMBER_PRIV_KEY_FILE`                                 | A path to the file contained the private key of the Oracle member account. It takes precedence over `MEMBER_PRIV_KEY`                                                    | False               | `/app/private_key`             |
 | `PINATA_JWT`                                           | JWT token to access pinata.cloud IPFS provider                                                                                                                           | True                | `aBcD1234...`                  |