Update links from Ropsten to Goerli

Author: lancelot-c

src/content/developers/tutorials/how-to-mint-an-nft/index.md

@@ -109,7 +109,7 @@ Once you’re done editing the JSON file, save it and upload it to Pinata, follo
 
 ## Step 5: Create an instance of your contract {#instance-contract}
 
-Now, to interact with our contract, we need to create an instance of it in our code. To do so we’ll need our contract address which we can get from the deployment or [Etherscan](https://ropsten.etherscan.io/) by looking up the address you used to deploy the contract.
+Now, to interact with our contract, we need to create an instance of it in our code. To do so we’ll need our contract address which we can get from the deployment or [Etherscan](https://goerli.etherscan.io/) by looking up the address you used to deploy the contract.
 
 ![View your contract address on Etherscan](./viewContractEtherscan.png)
 
@@ -130,7 +130,7 @@ Now, in order to create and send transactions to the Ethereum chain, we’ll use
 Add your public key to your `.env` file — if you completed part 1 of the tutorial, our `.env` file should now look like this:
 
 ```js
-API_URL = "https://eth-ropsten.alchemyapi.io/v2/your-api-key"
+API_URL = "https://eth-goerli.g.alchemy.com/v2/your-api-key"
 PRIVATE_KEY = "your-private-account-address"
 PUBLIC_KEY = "your-public-account-address"
 ```
@@ -316,7 +316,7 @@ Now, run `node scripts/mint-nft.js` to deploy your NFT. After a couple of second
 
     Check Alchemy's Mempool to view the status of your transaction!
 
-Next, visit your [Alchemy mempool](https://dashboard.alchemyapi.io/mempool) to see the status of your transaction (whether it’s pending, mined, or got dropped by the network). If your transaction got dropped, it’s also helpful to check [Ropsten Etherscan](https://ropsten.etherscan.io/) and search for your transaction hash.
+Next, visit your [Alchemy mempool](https://dashboard.alchemyapi.io/mempool) to see the status of your transaction (whether it’s pending, mined, or got dropped by the network). If your transaction got dropped, it’s also helpful to check [Goerli Etherscan](https://goerli.etherscan.io/) and search for your transaction hash.
 
 ![View your NFT transaction hash on Etherscan](./viewNFTEtherscan.png)_View your NFT transaction hash on Etherscan_