Merge pull request #6 from BTC415/dev

[fix] fixed gas optimized variables issue

Author: marksantiago290

contracts/ECT.sol

@@ -4,9 +4,9 @@ pragma solidity ^0.8.28;
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 
 contract ECT is ERC20 {
-    uint256 private _totalSupply = 100_000_000_000;
+    uint256 private constant _totalSupply = 100_000_000_000;
 
     constructor() ERC20("ERC20 Token", "ECT") {
         _mint(msg.sender, _totalSupply * 10 ** decimals());
     }
-}
+}