Documentation says "Edit Coin.sol" when "Coin.sol" doesn't exist.

Both the README here and the HardHat documentation on the [Avalanche Docs](https://docs.avax.network/build/tutorials/smart-contracts/using-hardhat-with-the-avalanche-c-chain/#write-contracts) say to edit a file called `Coin.sol`. I noticed that `master` has no file called this, neither does any of the tags. I assumed you meant the `ExampleERC20.sol` file, but a less attentive user may miss this.