Updating a docker installation

[tarmacalastair]

The documentation at
https://dashticz.readthedocs.io/en/beta/gettingstarted/automaticinstall.html#update-from-a-previous-version
and
https://dashticz.readthedocs.io/en/master/gettingstarted/automaticinstall.html#update-from-a-previous-version
does not actually tell you how to upgrade.

From what I can see, cobbled together from the troubleshooting page and also from the message I get when I rerun dashticz_install.sh, it looks like the step I need to use are

cd dashticz (or wherever Dashticz is installed)
make stop
make update
make start (a new image then downloads)

After this, if I type sudo docker images then I can see my new dtv3-8082 with its new creation date.

Please can the documentation be updated, modifying anything I might have got wrong?

Thanks