Update cli.md with missing features (upload, export, import) (#3572)

* These features exist in the code but not in documentation

site/content/en/docs/manual/advanced/cli.md

@@ -17,18 +17,21 @@ Overview of functionality:
 - List all tasks (supports basic CSV or JSON output)
 - Download JPEG frames (supports a list of frame IDs)
 - Dump annotations (supports all formats via format string)
+- Upload annotations for a task in the specified format (e.g. 'YOLO ZIP 1.0')
+- Export and download a whole task
+- Import a task
 
 **Usage**
 
 ```bash
 usage: cli.py [-h] [--auth USER:[PASS]] [--server-host SERVER_HOST]
               [--server-port SERVER_PORT] [--debug]
-              {create,delete,ls,frames,dump} ...
+              {create,delete,ls,frames,dump,upload,export,import} ...
 
 Perform common operations related to CVAT tasks.
 
 positional arguments:
-  {create,delete,ls,frames,dump}
+  {create,delete,ls,frames,dump,upload,export,import}
 
 optional arguments:
   -h, --help            show this help message and exit
@@ -45,11 +48,11 @@ optional arguments:
 
 **Examples**
 
-- List all tasks
-  `cli.py ls`
 - Create a task
   `cli.py create "new task" --labels labels.json local file1.jpg file2.jpg`
 - Delete some tasks
   `cli.py delete 100 101 102`
+- List all tasks
+  `cli.py ls`
 - Dump annotations
   `cli.py dump --format "CVAT for images 1.1" 103 output.xml`