With the help of asciinema probably. I like example here:

• https://github.com/bollu/teleport#demo

Here is proposed plan for demo:

1. Write in comments what is summoner about.
2. Call --help command.
3. Write in comments about config.
4. cat some default config (probably ours, but dunno, whether we should add GitHub in demo or not).
   • TODO: Decide what should go here.
5. Walk through whole interactive process.
6. Show some parts of files: .cabal, REAMDE, CHANGELOG, smth else?