Refine task categories and add paper link

This PR refines the `task_categories` field to primarily reflect the video classification nature of the MORSE-500 dataset while keeping the question answering aspects. It also adds a direct link to the paper for better discoverability.

README.md

@@ -1,13 +1,14 @@
 ---
 language: en
 license: cc-by-4.0
-pretty_name: Morse-500-view
-size_categories: [1K<n<10K]
+size_categories:
+- 1K<n<10K
 task_categories:
-  - video-classification
-  - question-answering
-  - visual-question-answering
+- video-classification
+- question-answering
+pretty_name: Morse-500-view
 ---
+
 <table>
   <tr>
     <td style="padding: 0;">
@@ -45,4 +46,4 @@ The viewing version of [`MORSE-500 Benchmark`](https://huggingface.co/datasets/v
 ## Dataset Structure
 
 - `test/`: Contains all MP4 video files
-- `test/metadata.csv`: Contains the dataset metadata, including video_path, query, ground_truth, question_text, and main_category
+- `test/metadata.csv`: Contains the dataset metadata, including video_path, query, ground_truth, question_text, and main_category