docs: adds overview for react-dapp-v2-with-ethers

dapps/react-dapp-v2-with-ethers/README.md

@@ -1,6 +1,18 @@
-# WalletConnect React App
+# React dApp (with v2 EthereumProvider + Ethers.js)
 
-## Getting Started
+🔗 Live dapp demo - https://react-dapp-v2-with-ethers.vercel.app <br />
+🔗 Live wallet demo - https://react-wallet-v2.vercel.app <br />
+📚 WalletConnect v2 Docs - https://docs.walletconnect.com/2.0
+
+## Overview
+
+This is an example implementation of a React dApp (generated via `create-react-app`) using the v2 [`EthereumProvider`](https://docs.walletconnect.com/2.0/quick-start/dapps/ethereum-provider) together with [`Ethers.js`](https://docs.ethers.io/v5/) to:
+
+- handle pairings
+- manage sessions
+- send JSON-RPC requests to a paired wallet
+
+## Running locally
 
 Install the app's dependencies:
 
@@ -14,6 +26,12 @@ Set up your local environment variables by copying the example into your own `.e
 cp .env.local.example .env.local
 ```
 
+Your `.env.local` now contains the following environment variables:
+
+- `REACT_APP_PROJECT_ID` (placeholder) - You can generate your own ProjectId at https://cloud.walletconnect.com
+- `REACT_APP_INFURA_ID` (placeholder) - You can generate your own Infura ID via https://infura.io/
+- `REACT_APP_RELAY_URL` (already set)
+
 ## Develop
 
 ```bash