cmd ref: document new subcommand remote rename

[karajan1001]

Related to issue iterative/dvc#3599.

[karajan1001]

Is this a relatively cleaner implementation of the dvc remote modify oldRemote name newRemote with the same command options as the dvc modify command?

@PseudoNerd
Sorry for the late reply, and thanks to @jorgeorpinel, I'm a little busy last week.
There is no command dvc remote modify name before, renaming the old remote repo is a new feature. And this issue is a documentation update linked to the one in the dvc.

[jorgeorpinel]

@karajan1001 will you be wiling/able to implement this docs update along with your core repo work? Just to know whether to plan to do it ourselves if not (as you can see there is interest from other contributors too). Thanks either way 🙂

[karajan1001]

@jorgeorpinel
@PseudoNerd
Oh, I used to plan to solve it this week, but I am more pleased with other contributor's help.

[jorgeorpinel]

If you're able to do it it's probably the most efficient way since you know exactly how it works. We only need a draft PR on this and we'll fix it up in terms or language etc. so don't worry about it being perfect.

[karajan1001]

@jorgeorpinel
I am just considering writing some introduction to my PR here. A draft PR would be better, and I will finish it soon.