docs: cmd-reference: add --tree/--level (#5339)

Author: skshetry

content/docs/command-reference/list-url.md

@@ -18,7 +18,7 @@ Useful to find data to `dvc get-url` or `dvc import-url`.
 ## Synopsis
 
 ```usage
-usage: dvc list-url [-h] [-q | -v] [-R] [--size] [--fs-config <name>=<value>] url
+usage: dvc list-url [-h] [-q | -v] [-R|-T] [-L depth] [--size] [--fs-config <name>=<value>] url
 
 positional arguments:
   url              (See supported URLs in the description)
@@ -60,6 +60,10 @@ list files recursively.
 
 - `-R`, `--recursive` - recursively list files in all subdirectories.
 
+- `-T`, `--tree` - recurse into directories as a tree.
+
+- `-L`, `--level <depth>` - limit the depth of recursion.
+
 - `--size` - show sizes.
 
 - `--fs-config <name>=<value>` - `dvc remote` config options for the target url.