Get image file from path in example

Author: adamtheturtle

README.rst

@@ -20,18 +20,25 @@ Getting Started
 
 .. code:: python
 
+   import io
+
    from vws import VWS, CloudRecoService
 
    vws_client = VWS(server_access_key='...', server_secret_key='...')
    cloud_reco_client = CloudRecoService(client_access_key='...', client_secret_key='...')
    name = 'my_image_name'
+
+   with open('/path/to/image.png', 'rb') as my_image_file:
+      my_image = io.BytesIO(my_image_file.read())
+
    target_id = vws_client.add_target(
        name=name,
        width=1,
        image=my_image,
    )
    vws_client.wait_for_target_processed(target_id=target_id)
    matching_targets = cloud_reco_client.query(image=my_image)
+
    assert matching_targets[0]['target_id'] == target_id