Update README.md

README.md

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 # Decentralize-Exchange-Project
-Date : 03/05/2024
+Date : 08/05/2024
 
-Ongoing progress making Decentralized Exchange (DEX) smart contract write in solidity, some DEX feature available will be explained later...
+Ongoing progress making Decentralized Exchange (DEX) smart contract write in solidity, some more DEX feature available will be explained later...
 
-1. Create Vault and tokenize/wrapped ERC20 token for internal trading pair.
-2. Deposit to smart contract Vault feature for user to specified ERC20 Vault and update user Wrapped ERC20 balance.
-3. Ongoing progress making Orderbook for every Wrapped ERC20 assets in DEX. (Added functionality Stackorder List before putting to Orderbook List to prevent frontrun or double entry)
-4. Orderbook will be tested using xxx_test.sol test program for certain usecase. more comprehensive scenario test will be included later...
-5. Ongoing progress making Lending Protocol for every user in DEX
+1. **ERC20Vault Interface (`IERC20Vault`)**: Defines the interface for an ERC20 token vault, including functions for total supply, balance of an account, allowance, token name, symbol, and decimals. It also includes functions for deposit, withdrawal, transfer, and approval.
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+2. **ERC20 Interface (`IERC20`)**: Defines the standard ERC20 interface with functions like name, symbol, decimals, total supply, balance of an account, transfer, transferFrom, approve, and allowance.
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+3. **ERC20Vault Contract (`ERC20Vault`)**: Implements the ERC20Vault interface. This contract serves as a vault for wrapping ERC20 tokens. It allows depositing and withdrawing tokens, as well as transferring tokens between accounts. Additionally, it handles approvals for transferring tokens on behalf of another account.
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+4. **DEX Interface (`IDex`)**: Defines the interface for a decentralized exchange (DEX) contract. It includes functions for creating vault tokens, checking balances, depositing and withdrawing tokens, approving token transfers, transferring tokens, lending assets, managing collateral, and interacting with an order book.
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+5. **Lending Protocol Interface (`ILendingProtocol`)**: Defines the interface for a lending protocol contract. It includes functions for borrowing assets, adding collateral, decreasing collateral, and checking loan-to-value (LTV) ratios.
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+6. **Assets Pair Order Book Interface (`IAssetsPairOrderBook`)**: Defines the interface for an order book contract that manages trading pairs. It includes functions for entering orders, removing orders, and getting price information for trading pairs.
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+7. **Xchange Contract (`Xchange`)**: Implements the DEX interface. This contract allows creating vault tokens, managing balances, depositing and withdrawing tokens, approving token transfers, transferring tokens, lending assets, managing collateral, and interacting with an order book.
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+Overall, its provides a framework for creating and managing ERC20 tokens, as well as enabling decentralized exchange and lending functionalities. Users can interact with the system to trade tokens, lend assets, and manage their balances and orders.