cmd ref: document dir support for import-url and get-url

[efiop]

After iterative/dvc#2894 we automatically support s3, gs, local, ssh directories in import-url and get-url.

NOTE: just trying to not forget about this, will try to contribute a PR myself if I can.

[shcheklein]

@efiop

thanks!

if you don't have time please put a summary of what files/places should be updated.

[efiop]

@shcheklein Right, good point! I'm mostly worried about command reference for get-url and import-url. The latter one mentions dirs, but doesn't specify that only s3, gs, ssh and local dirs are supported. I've updated the examples in the command help iterative/dvc#2907

[jorgeorpinel]

Actually, this one seems pretty straightforward, we can probably do it from scratch ourselves so I'll unassign you. Please just lmk if there are any got-cha's to keep in mind with this new feature.

[jorgeorpinel]

we automatically support s3, gs, local, ssh directories in import-url and get-url

@efiop so just HDFS and HTTP are not supported, right? Because both references already say "Download a file or directory from any supported URL" so the change would be actually to say that only certain remotes are supported for dirs.

UPDATE: See 394e9c8. Feel free to review in #931.

[efiop]

@jorgeorpinel Sorry for the delay 🙁 Correct, only those mentioned currently support directories. The rest - doesn't.