Update README.md

README.md

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 license: cc-by-nc-nd-4.0
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+## 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.
+
+For more details, please refer to the link: https://www.nexdata.ai/dataset/1392?source=Huggingface
+
+
+## Date size
+497 images
+## Collecting environment
+pure color background
+## Data diversity
+including multiple types of invoice
+## Device
+cellphone
+## Data format
+the image data is in .jpg format
+# Licensing Information
+Commercial License