feat: example to upload file to SystemLink

docs/getting_started.rst

@@ -183,4 +183,10 @@ Get the metadata of a File using its Id and download it.
 
 .. literalinclude:: ../examples/file/download_file.py
    :language: python
-   :linenos:
+   :linenos:
+
+Upload a File from disk or memory to SystemLink
+
+.. literalinclude:: ../examples/file/upload_file.py
+   :language: python
+   :linenos:

examples/file/upload_file.py

@@ -0,0 +1,21 @@
+"""Example to upload a file to SystemLink."""
+
+import io
+
+from nisystemlink.clients.file import FileClient
+
+client = FileClient()
+
+workspace_id = None  # Upload to default workspace of the auth key
+
+# Upload file from disk
+file_path = "path/to/your/file"
+with open(file_path, "rb") as fp:
+    file_id = client.upload_file(file=fp, workspace=workspace_id)
+    print(f"Uploaded file from {file_path} to SystemLink with FileID - {file_id}")
+
+# Upload file-like object from memory
+test_file = io.BytesIO(b"This is an example file content.")
+test_file.name = "File_From_Memory.txt"  # assign a name to the file object
+file_id = client.upload_file(file=test_file)
+print(f"Uploaded file from memory to SystemLink with FileID - {file_id}")