add gas reporting

Author: tim-schultz

README.md

@@ -12,6 +12,9 @@ It is based on the [EIP-712 standard for typed structured data hashing and signi
 [DIDStampVCVerifier](contracts/DIDStampVCVerifier.sol) - On chain verification that the signer of the provided credential is the issuer. 
 [Test](test/DIDStampVCVerifier.ts) - Verify that signed credential is valid and signed by issuer
 
+### Gas usage of simple verification
+
+
 ### Pre Requisites
 
 Before running any command, you need to create a `.env` file and set a BIP-39 compatible mnemonic or a private key as an environment

hardhat.config.ts

@@ -4,6 +4,8 @@ import { HardhatUserConfig } from "hardhat/config";
 import { NetworkUserConfig } from "hardhat/types";
 import { resolve } from "path";
 
+import "hardhat-gas-reporter"
+
 import "./tasks/accounts";
 import "./tasks/didpkh";
 import "./tasks/issue";
@@ -83,6 +85,7 @@ const config: HardhatUserConfig = {
     enabled: process.env.REPORT_GAS ? true : false,
     excludeContracts: [],
     src: "./contracts",
+    coinmarketcap: process.env.COINMARKETCAP_API_KEY,
   },
   networks: {
     hardhat: {