Improve metadata and add prominent links to HF paper and GitHub repository

This PR enhances the `ReceiptSense` dataset card by:
- Updating `task_categories` in the metadata to more accurately reflect the dataset's supported tasks: `object-detection`, `image-to-text` (for OCR), `image-text-to-text` (for Receipt Question Answering), and `visual-document-retrieval` (for Information Extraction). The less relevant `text-classification` and `zero-shot-classification` categories were removed.
- Adding relevant `tags` to improve dataset discoverability, such as `receipt-understanding`, `ocr`, `information-extraction`, `visual-question-answering`, `document-understanding`, `multilingual`, and `arabic`.
- Improving the links section by adding a prominent badge for the Hugging Face paper page ([https://huggingface.co/papers/2406.04493](https://huggingface.co/papers/2406.04493)) and a badge for the GitHub repository ([https://github.com/Update-For-Integrated-Business-AI/CORU](https://github.com/Update-For-Integrated-Business-AI/CORU)), while retaining the existing arXiv link as instructed.

README.md

@@ -1,18 +1,30 @@
 ---
-license: mit
-task_categories:
-- object-detection
-- text-classification
-- zero-shot-classification
 language:
 - en
 - ar
+license: mit
 size_categories:
 - 10K<n<100K
+task_categories:
+- object-detection
+- image-to-text
+- image-text-to-text
+- visual-document-retrieval
+tags:
+- receipt-understanding
+- ocr
+- information-extraction
+- visual-question-answering
+- document-understanding
+- multilingual
+- arabic
 ---
+
 # ReceiptSense: Beyond Traditional OCR - A Dataset for Receipt Understanding
 
+[![Paper](https://img.shields.io/badge/Paper-HuggingFace-red)](https://huggingface.co/papers/2406.04493)
 [![Paper](https://img.shields.io/badge/Paper-arXiv-red)](https://arxiv.org/abs/2406.04493)
+[![Code](https://img.shields.io/badge/Code-GitHub-blue)](https://github.com/Update-For-Integrated-Business-AI/CORU)
 [![Dataset](https://img.shields.io/badge/Dataset-HuggingFace-yellow)](https://huggingface.co/datasets/abdoelsayed/CORU)
 [![License](https://img.shields.io/badge/License-MIT-blue)]()
 
@@ -268,4 +280,4 @@ This dataset is released under the MIT License. See [LICENSE](LICENSE) file for
 
 ![Visitors](https://api.visitorbadge.io/api/visitors?path=https%3A%2F%2Fgithub.com%2FUpdate-For-Integrated-Business-AI%2FCORU&countColor=%23263759)
 
-</div>
+</div>