Added .env.example

Author: Ryan

.env.example

@@ -0,0 +1,12 @@
+# Etherscan Configuration
+ETHERSCAN_API_KEY="YOUR_ETHERSCAN_API_KEY"
+
+# RPC Provider Configuration
+
+# Using Alchemy RPC URL
+RPC_API_KEY="YOUR_ALCHEMY_API_KEY"
+ETHEREUM_RPC_URL="https://eth-mainnet.g.alchemy.com/v2/${RPC_API_KEY}"
+
+# Using Infura RPC URL
+RPC_API_KEY="YOUR_INFURA_API_KEY"
+ETHEREUM_RPC_URL="https://mainnet.infura.io/v3/${RPC_API_KEY}"