update readme, clean contract of hardhat dep (#1)

Author: andyrdt

README.md

@@ -1,13 +1,13 @@
 # Scroll Contract Deployment Demo
 
-This project demonstrates how to use hardhat or foundry to deploy a contract in Scroll testnet. This project contains a simple contract which will lock certain amounts of Ether in the deployed contract for 1 year.
+This project demonstrates how to use hardhat or foundry to deploy a contract in Scroll testnet. This project contains a simple contract which will lock certain amounts of Ether in the deployed contract for a specified amount of time.
 
 ## Deploy with Hardhat
-
-1. Run `yarn install` to install dependency.
-2. Create a `.env` file following the example `.env.example` in the root directory. Change `PRIVATE_KEY` to your own account private key in the `.env`.
-3. Run `yarn compile` to compile the contract.
-4. Run `yarn deploy:scrollTestnet` to deploy the contract in Scroll testnet.
+1. If you haven't already, install [nodejs](https://nodejs.org/en/download/) and [yarn](https://classic.yarnpkg.com/lang/en/docs/install).
+2. Run `yarn install` to install dependencies.
+3. Create a `.env` file following the example `.env.example` in the root directory. Change `PRIVATE_KEY` to your own account private key in the `.env`.
+4. Run `yarn compile` to compile the contract.
+5. Run `yarn deploy:scrollTestnet` to deploy the contract on the Scroll Pre-Alpha Testnet.
 
 ## Deploy with Foundry
 
@@ -29,3 +29,5 @@ This project demonstrates how to use hardhat or foundry to deploy a contract in
       --legacy \
       contracts/Lock.sol:Lock
     ```
+  - `<lock_amount>` is the amount of `TSETH` to be locked in the contract. Try setting this to some small amount, like `0.0000001ether`.
+  - `<unlock_time>` is the Unix timestamp after which the funds locked in the contract will become available for withdrawal. Try setting this to some Unix timestamp in the future, like `1696118400` (this Unix timestamp corresponds to October 1, 2023).

contracts/Lock.sol

@@ -1,9 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
 pragma solidity ^0.8.9;
 
-// Import this file to use console.log
-import "hardhat/console.sol";
-
 contract Lock {
     uint public unlockTime;
     address payable public owner;
@@ -21,9 +18,6 @@ contract Lock {
     }
 
     function withdraw() public {
-        // Uncomment this line to print a log in your terminal
-        // console.log("Unlock time is %o and block timestamp is %o", unlockTime, block.timestamp);
-
         require(block.timestamp >= unlockTime, "You can't withdraw yet");
         require(msg.sender == owner, "You aren't the owner");