Add tutorial: Cloning a talon list

[pokey]

• Depends on https://github.com/cursorless-dev/cursorless/pull/360

Checklist

• [ ] Create a json script for it
• [ ] Don't forget to add the intermediate steps where it was not a cursorless command and so isn't recorded
• [ ] I have added tests
• [ ] I have updated the docs and cheatsheet
• [ ] I have not broken the cheatsheet