New Guide or Tutorial: Updater Functions

[behackl]

Description of proposed feature

A dedicated written guide or tutorial for updaters would be nice. One possible way to go would be to transcribe https://www.youtube.com/watch?v=vUIfNN6Bs_4 -- or come up with something better.

[joybh98]

Can I take this ? I would have to comb over stuff but I woud like to start contributing again to this project.

[SirJamesClarkMaxwell]

Is it still alive PR? Someone is working on this part of the docs?

[JasonGrace2282]

Is it still alive PR? Someone is working on this part of the docs?

See #3157