[fix] correct dependencies and [refactor] rewrite app.js using react hooks and [chore] clean up

.gitignore

@@ -22,3 +22,4 @@
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+/src/built-contracts

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+  "cSpell.words": [
+    "bignumber",
+    "browserslist",
+    "noopener",
+    "noreferrer"
+  ]
+}

README.md

@@ -0,0 +1,36 @@
+# nft
+Crypto Collectible NFT Tutorial with ERC-721 Tokens
+
+## Dependencies <br/>
+Install these prerequisites to continue
+
+NPM: https://nodejs.org <br/>
+Truffle: https://github.com/trufflesuite/truffle <br/>
+Ganache: http://truffleframework.com/ganache/ <br/>
+Metamask: https://metamask.io/ <br/>
+<br/>
+## Step 1. Clone the project
+```bash 
+https://github.com/dappuniversity/nft.git
+```
+
+## Step 2. Install dependencies
+```bash
+cd nft
+npm install
+```
+## Step 3. Start Ganache
+Open the Ganache GUI client that you downloaded and installed. This will start your local blockchain instance. 
+
+## Step 4. Compile & Deploy Election Smart Contract
+```truffle migrate --reset``` You need to migrate contract in order to deploy in your local system
+## Step 5. Configure Metamask
+-Unlock Metamask <br/>
+-Connect metamask to your local Ethereum blockchain provided by Ganache.<br/>
+-Import an account provided by ganache.<br/>
+## Step 6. Run the Front End Application
+```
+cd src
+npm start
+```
+Now you Blockchain web-app is served on http://localhost:8000