Update EIP-223: Update eip-223.md

Merged by EIP-Bot.

EIPS/eip-223.md

@@ -38,25 +38,25 @@ Token transfers to contracts not implementing `tokenReceived` as described below
 function totalSupply() view returns (uint256 totalSupply)
 ```
 
-Gets the total supply of the token. The functionality of this method is identical to that of ERC-20.
+Returns the total supply of the token. The functionality of this method is identical to that of ERC-20.
 
 ##### `name`
 
 ```solidity
 function name() view returns (string _name)
 ```
 
-Gets the name of the token.  The functionality of this method is identical to that of ERC-20.
+Returns the name of the token.  The functionality of this method is identical to that of ERC-20.
 
 OPTIONAL - This method can be used to improve usability, but interfaces and other contracts MUST NOT expect these values to be present.
 
 ##### `symbol`
 
 ```solidity
-function symbol() view returns (bytes32 _symbol)
+function symbol() view returns (string _symbol)
 ```
 
-Gets the symbol of the token. The functionality of this method is identical to that of ERC-20.
+Returns the symbol of the token. The functionality of this method is identical to that of ERC-20.
 
 OPTIONAL - This method can be used to improve usability, but interfaces and other contracts MUST NOT expect these values to be present.
 
@@ -66,7 +66,17 @@ OPTIONAL - This method can be used to improve usability, but interfaces and othe
 function decimals() view returns (uint8 _decimals)
 ```
 
-Gets the number of decimals of the token. The functionality of this method is identical to that of ERC-20.
+Returns the number of decimals of the token. The functionality of this method is identical to that of ERC-20.
+
+OPTIONAL - This method can be used to improve usability, but interfaces and other contracts MUST NOT expect these values to be present. 
+
+##### `standard`
+
+```solidity
+function standard() public view returns (string memory)  
+```
+
+Returns the identifier of the standard. If the token is [ERC-223](./eip-20.md) then it must return `"223"`.
 
 OPTIONAL - This method can be used to improve usability, but interfaces and other contracts MUST NOT expect these values to be present.
 
@@ -76,7 +86,7 @@ OPTIONAL - This method can be used to improve usability, but interfaces and othe
 function balanceOf(address _owner) view returns (uint256 balance)
 ```
 
-Gets the account balance of another account with address `_owner`. The functionality of this method is identical to that of ERC-20.
+Returns the account balance of another account with address `_owner`. The functionality of this method is identical to that of ERC-20.
 
 ##### `transfer(address, uint)`