feat: edited deployment scripts and update readme

Author: dannweeeee

README.md

@@ -15,19 +15,19 @@
 1. Registry.sol
 
 ```
-forge script script/deploy/Registry.s.sol:DeployRegistry --rpc-url <PRC_URL> --broadcast --private-key <PRIVATE_KEY>
+forge script script/deploy/Registry.s.sol:DeployRegistry --rpc-url <PRC_URL> --broadcast 
 ```
 
 2. Exchange.sol
 
 ```
-forge script script/deploy/Exchange.s.sol:DeployExchange --rpc-url <PRC_URL> --broadcast --private-key <PRIVATE_KEY>
+forge script script/deploy/Exchange.s.sol:DeployExchange --rpc-url <PRC_URL> --broadcast 
 ```
 
 3. Vault.sol
 
 ```
-forge script script/deploy/Vault.s.sol:DeployVault --rpc-url <PRC_URL> --broadcast --private-key <PRIVATE_KEY>
+forge script script/deploy/Vault.s.sol:DeployVault --rpc-url <PRC_URL> --broadcast 
 ```
 
 4. XSGD.sol

script/deploy/Exchange.s.sol

@@ -6,7 +6,8 @@ import "../../src/Exchange.sol";
 
 contract DeployExchange is Script {
     function run() external {
-        vm.startBroadcast();
+        uint256 deployerPrivateKey = vm.envUint("PRIVATE_KEY");
+        vm.startBroadcast(deployerPrivateKey);
 
         address registryAddress = 0x2b4836d81370e37030727E4DCbd9cC5a772cf43A;
         address usdcAddress = 0x036CbD53842c5426634e7929541eC2318f3dCF7e;

script/deploy/Registry.s.sol

@@ -6,7 +6,8 @@ import "../../src/Registry.sol";
 
 contract DeployRegistry is Script {
     function run() external {
-        vm.startBroadcast();
+        uint256 deployerPrivateKey = vm.envUint("PRIVATE_KEY");
+        vm.startBroadcast(deployerPrivateKey);
 
         Registry registry = new Registry();
 

script/deploy/Vault.s.sol

@@ -19,7 +19,8 @@ contract DeployVault is Script {
         // Address of aBaseUSDC on Base Sepolia
         address aBaseUSDCAddress = 0xfE45Bf4dEF7223Ab1Bf83cA17a4462Ef1647F7FF;
 
-        vm.startBroadcast();
+        uint256 deployerPrivateKey = vm.envUint("PRIVATE_KEY");
+        vm.startBroadcast(deployerPrivateKey);
 
         // Deploy the implementation contract
         Vault vaultImplementation = new Vault();