docs: add arg to contractCreated event (ethereum#4352)

EIPS/eip-725.md

@@ -87,7 +87,7 @@ MUST be triggered when `execute` creates a new call using the `operationType` `0
 #### ContractCreated
 
 ```solidity
-event ContractCreated(address indexed contractAddress)
+event ContractCreated(uint256 indexed _operation, address indexed _contractAddress, uint256 indexed _value);
 ```
 MUST be triggered when `execute` creates a new contract using the `operationType` `1`, `2`.
 
@@ -175,7 +175,7 @@ pragma solidity >=0.5.0 <0.7.0;
 
 //ERC165 identifier: `0x44c028fe`
 interface IERC725X  /* is ERC165, ERC173 */ {
-    event ContractCreated(address indexed contractAddress);
+    event ContractCreated(uint256 indexed operation, address indexed contractAddress, uint256 indexed value);
     event Executed(uint256 indexed operation, address indexed to, uint256 indexed  value, bytes data);
 
     function execute(uint256 operationType, address to, uint256 value, bytes calldata data) external payable returns(bytes memory);