Add task category and project page URL

This PR adds the `task_categories` metadata field and the project page URL to the dataset card.

README.md

@@ -18,8 +18,11 @@ configs:
   data_files:
   - split: train
     path: data/train-*
+task_categories:
+- text-to-text
 ---
 
 Check out more datails here:
 - Paper: https://arxiv.org/abs/2506.14606
-- Code: https://github.com/ahmedheakl/Guaranteed-Guess
+- Code: https://github.com/ahmedheakl/Guaranteed-Guess
+- Project Page: https://ahmedheakl.github.io/Guaranteed-Guess/