Fix task_ids to use standard HuggingFace task identifiers

- Replace custom task IDs with official ones: text2text-generation, multi-class-classification, open-domain-qa
- Ensures proper dataset categorization and discoverability on HuggingFace Hub

README.md

@@ -26,9 +26,9 @@ task_categories:
 - text-generation
 - question-answering
 task_ids:
-- educational-assessment
-- curriculum-alignment
-- learning-objective-classification
+- text2text-generation
+- multi-class-classification
+- open-domain-qa
 dataset_info:
   features:
   - name: instruction