fix hardhat.config.js

yingjingyang · yingjingyang · commit fd0ff9b05c10 · 2022-05-18T20:26:25.000+08:00
diff --git a/basic/42-merkle-distributor-airdrop/hardhat.config.js b/basic/42-merkle-distributor-airdrop/hardhat.config.js
@@ -28,7 +28,7 @@ module.exports = {
     ],
   },
   etherscan: {
-    apiKey: "xxxx"
+    apiKey: process.env.API_KEY
   },
   networks: {
     localhost: {
