Update erc721-nft-bridge.mdx

In the L2ERC721Gateway API section, the withdrawERC721 function description, the parameter list, mentions "deposit" instead of "withdraw." So I changed it to 'withdraw'.

Author: oxbau

src/content/docs/en/developers/l1-and-l2-bridging/erc721-nft-bridge.mdx

@@ -106,7 +106,7 @@ Update the mapping that connects an NFT contract from L1 to L2.
 ### withdrawERC721
 
 ```solidity
-function depositERC721(address _token, address _to, uint256 _tokenId, uint256 _gasLimit) external payable;
+function withdrawERC721(address _token, address _to, uint256 _tokenId, uint256 _gasLimit) external payable;
 ```
 
 Send an ERC721 NFT from L2 to a recipient's account on L1.