update readme

README.md

@@ -2512,6 +2512,7 @@ dataset_object = client.create_dataset_object(
             ],
             "attributes": [
                 {
+                    "type": "text",
                     "value": "Scottish field",
                     "key": "kind"
                 }
@@ -2532,6 +2533,32 @@ dataset_object = client.create_dataset_object(
 )
 ```
 
+If you would like to create a new dataset object with classification type annotations, please pass empty points and value of the annotation named 'classification'.
+
+```python
+dataset_object = client.create_dataset_object(
+    dataset="YOUR_DATASET_NAME",
+    name="brushwood_dog.jpg",
+    file_path="./brushwood_dog.jpg",
+    tags=["dog"], # max 5 tags per dataset object.
+    licenses=["MIT", "my-license"],  # max 10 licenses per dataset object
+    annotations=[
+        { 
+            "type": "classification",
+            "value": "classification",
+            "points": [],
+            "attributes": [
+                {
+                    "type": "text",
+                    "value": "Scottish field",
+                    "key": "kind"
+                }
+            ]
+        }
+    ]
+)
+```
+
 #### Response Dataset Object
 
 See API docs for details.