fix hardhat gas issue (#649)

Co-authored-by: Hugo Masclet <[email protected]>

docs/contracts/getting-started.md

@@ -251,9 +251,17 @@ import * as dotenv from 'dotenv';
 dotenv.config();
 
 async function main() {
+  // Hardhat has some issues with EIP 1559 settings, so we force it
+  // See this issue for more info: https://github.com/NomicFoundation/hardhat/issues/3418
+  const { maxFeePerGas, maxPriorityFeePerGas } = await ethers.provider.getFeeData();
+
   const customToken = await ethers.getContractFactory('CustomToken');
 
-  const Token = await customToken.deploy();
+  const Token = await customToken.deploy({
+    maxFeePerGas,
+    maxPriorityFeePerGas,
+    type: 2,
+  });
   const token = await Token.waitForDeployment();
   const CustomTokenAddress = await token.getAddress();
   console.log(`Token address: ${CustomTokenAddress}`);