Update TBTCSystem mint documentation
Clarify that mint can only be called by deposit factory
@@ -39,6 +39,7 @@ contract TBTCSystem is ITBTCSystem, ERC721, ERC721MinterAuthority, DepositLog {
/// @notice Function to mint a new token.
/// @dev Reverts if the given token ID already exists.
+ /// This function can only be called by depositFactory
/// @param _to The address that will own the minted token
/// @param _tokenId uint256 ID of the token to be minted
function mint(address _to, uint256 _tokenId) public onlyFactory {
