1. Add a TXT record to DNS <domain> with:
See it in action here: https://ipfs.io/ipns/ipfs.io
WARNING: IPNS is still under dev. it's not robust yet, convergence may not be perfect.
There should be some progress on ipns pretty soon, i'm working on a 'phase one' fix that improves upon the current situation, and will be replaced later by our final implementation once the specification and requirements for it are complete.