Update README after changing example

Signed-off-by: Luis Mastrangelo <luis@swirldslabs.com>

Author: acuarica

README.md

@@ -94,7 +94,7 @@ For example
 pragma solidity ^0.8.0;
 
 import {Test} from "forge-std/Test.sol";
-import {HtsSetup} from "hedera-forking/htsSetup.sol";
+import {HtsSetup} from "hedera-forking/HtsSetup.sol";
 import {IERC20} from "hedera-forking/IERC20.sol";
 import {IHederaTokenService} from "hedera-forking/IHederaTokenService.sol";
 import {HederaResponseCodes} from "hedera-forking/HederaResponseCodes.sol";