add basic env for provider

[NicolasMahe]

It will be nice to add an env file to set the provider required by instead of hardcoded them:

nextjs-tailwind-ethers/lib/connector.ts

Lines 5 to 7 in b2d669d

	export const walletConnectConnector = new WalletConnectConnector({
	rpc: { 1: '...' }, // Alchemy or infura api
	})