Hi,
The blog post: https://blog.infura.io/deploying-smart-contracts-managing-transactions-ethereum/#contract-deployment
The links that are broken should point to the deployment scripts for ethers and web3.js.
Eg:
Change: https://github.com/INFURA/demo-eth-tx/blob/master/ethers/deploy.js
to: …/INFURA/demo-eth-tx/blob/master/standard-transactions/ethers/deploy.js
(I have to truncate the new url because I am a new user)