Fix typo causing broken URL in ERC20Snapshot comment (#3428)

contracts/token/ERC20/extensions/ERC20Snapshot.sol

@@ -41,7 +41,7 @@ import "../../../utils/Counters.sol";
 
 abstract contract ERC20Snapshot is ERC20 {
     // Inspired by Jordi Baylina's MiniMeToken to record historical balances:
-    // https://github.com/Giveth/minimd/blob/ea04d950eea153a04c51fa510b068b9dded390cb/contracts/MiniMeToken.sol
+    // https://github.com/Giveth/minime/blob/ea04d950eea153a04c51fa510b068b9dded390cb/contracts/MiniMeToken.sol
 
     using Arrays for uint256[];
     using Counters for Counters.Counter;