Update README.md

README.md

@@ -2,9 +2,9 @@
 license: cc-by-nc-nd-4.0
 ---
 ## Description
-497 Images – English Invoice Data，the collection background is a solid color background, and personal information is desensitized, including various types of invoices, which can be used for tasks such as bill recognition and text recognition.
+This dataset is just a sample of 497 Images – English Invoice Data(paid dataset)，the collection background is a solid color background, and personal information is desensitized, including various types of invoices, which can be used for tasks such as bill recognition and text recognition.
 
-For more details, please refer to the link: https://www.nexdata.ai/datasets/ocr/1392?source=Huggingface
+For more details & to download the rest of the dataset(paid),please refer to the link: https://www.nexdata.ai/datasets/ocr/1392?source=Huggingface
 
 
 ## Date size