add erc-7765 reference

assets/erc-7765/contracts/ERC7765Example.sol

@@ -1,9 +1,9 @@
 // SPDX-License-Identifier: UNLICENSED
 pragma solidity >=0.7.0 <0.9.0;
 
-import "../lib/openzeppelin-contracts/contracts/token/ERC721/ERC721.sol";
-import "../lib/openzeppelin-contracts/contracts/utils/Strings.sol";
-import "../lib/openzeppelin-contracts/contracts/utils/Base64.sol";
+import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
+import "@openzeppelin/contracts/utils/Strings.sol";
+import "@openzeppelin/contracts/utils/Base64.sol";
 import "./interfaces/IERC7765.sol";
 import "./interfaces/IERC7765Metadata.sol";