Multi-page website

In the tutorial step by step (https://docs.ipfs.tech/how-to/websites-on-ipfs/multipage-website/#publish-to-ipns) we installed an ipfs desktop at window but we not installed ipfs separate.
So the tutorial step Double check that this project has been added to IPFS by running ipfs add -r . in an terminal fails because the terminal could not find the ipfs command.
In the tutorial an step is missing wich expose path to ipfs or set environment variables or so on.