update example usage

README.md

@@ -124,17 +124,15 @@ This is an object detection dataset with 8 classes:
 ```python
 from datasets import load_dataset
 
-dataset = load_dataset("your-username/AccessParkCV")
+train_dataset = load_dataset("makeabilitylab/disabilityparking", split="train", streaming=True)
 
-# Access training data
-train_dataset = dataset["train"]
+example = next(iter(train_dataset))
 
 # Example of accessing an item
-item = train_dataset[0]
-image = item["image"]
-bboxes = item["objects"]["bbox"]
-categories = item["objects"]["category"]
-segmentations = item["objects"]["segmentation"]  # Polygon coordinates
+image = example["image"]
+bboxes = example["objects"]["bbox"]
+categories = example["objects"]["category"]
+segmentations = example["objects"]["segmentation"]  # Polygon coordinates
 ```
 
 ## Citation