"official jj tutorial" links to an old version of the docs

[Wazzaps]

I started following your tutorial (looks really useful so far btw!) and while trying to find the installation instructions, I saw a link to the offical docs in the introduction.
Upon following them, I landed at https://docs.jj-vcs.dev/v0.13.0/tutorial/ which looked legit, except some of the commands didn't work.
Specifically, the shell completion command has changed from (e.g.) jj util completion --fish | source to jj util completion fish | source.
I assume there are other differences, which might be confusing for new users.

[steveklabnik]

Thanks! I linked to the version I originally wrote the tutorial for. It's then since been updated by people when there have been problems. I'm working on a new version of this, though, so it's kinda just sitting as-is for now. I'd happily take a PR to adjust the link to the correct version.