add comment for contract add timelock

contracts/BEChip.sol

@@ -2,6 +2,8 @@
 pragma solidity 0.8.10;
 import "./BEBase.sol";
 
+// this contract will transfer ownership to BETimelockController after deployed
+// all onlyowner method would add timelock
 contract BEChip is BEBase{
     constructor() ERC721("Crypto Elite's Chip", "CECP") {}
 }

contracts/BEEquipment.sol

@@ -2,6 +2,8 @@
 pragma solidity 0.8.10;
 import "./BEBase.sol";
 
+// this contract will transfer ownership to BETimelockController after deployed
+// all onlyowner method would add timelock
 contract BEEquipment is BEBase{
     constructor() ERC721("Crypto Elite's Equipment", "CEE") {}
 }

contracts/BEHero.sol

@@ -2,6 +2,8 @@
 pragma solidity 0.8.10;
 import "./BEBase.sol";
 
+// this contract will transfer ownership to BETimelockController after deployed
+// all onlyowner method would add timelock
 contract BEHero is BEBase{
     constructor() ERC721("Crypto Elite's Hero", "CEH") {}
 }

contracts/EvolveProxy.sol

@@ -5,6 +5,9 @@ import "@openzeppelin/contracts/proxy/utils/Initializable.sol";
 import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
 import "./HasSignature.sol";
 
+// this contract will transfer ownership to BETimelockController after deployed
+// all onlyowner method would add timelock
+
 interface IBurnableERC721 is IERC721 {
     function burn(address owner, uint256 tokenId) external;
 }

contracts/MarketPlace.sol

@@ -10,6 +10,8 @@ import "@openzeppelin/contracts/access/Ownable.sol";
 import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
 import "./HasSignature.sol";
 
+// this contract will transfer ownership to BETimelockController after deployed
+// all onlyowner method would add timelock
 contract MarketPlace is Ownable, HasSignature {
     using SafeERC20 for IERC20;
     using SafeMath for uint256;