fix task_ids

README.md

@@ -13,10 +13,11 @@ source_datasets:
 - original
 task_categories:
 - other
-task_ids:
-- other-other-data-mining
+task_ids: []
 paperswithcode_id: arcov-19
 pretty_name: ArCOV19
+tags:
+- data-mining
 ---
 
 # Dataset Card for ArCOV19
@@ -152,4 +153,4 @@ No annotation was provided with the dataset.
 
 ### Contributions
 
-Thanks to [@Fatima-Haouari](https://github.com/Fatima-Haouari) for adding this dataset.
+Thanks to [@Fatima-Haouari](https://github.com/Fatima-Haouari) for adding this dataset.