Update README.md

README.md

@@ -76,7 +76,7 @@ The dataset consists of these components: a task file, and a directory containin
 
 ### Data Fields
 
-  * `instance_id` (string): A unique identifier for the task. This ID corresponds to the filename of the ground-truth CSV file in the `widesearch_gold` directory (e.g., `ws_001` corresponds to `ws_001.csv`).
+  * `instance_id` (string): A unique identifier for the task. This ID corresponds to the filename of the ground-truth CSV file in the `widesearch_gold` directory (e.g., `ws_en_001` corresponds to `ws_en_001.csv`).
   * `query` (string): The natural language instruction given to the AI agent. It details the task requirements, the data columns to be collected, and the final Markdown table format.
   * `evaluation` (dict): An object containing all the information necessary for automated evaluation.
       * `unique_columns` (list): The primary key column(s) used to uniquely identify a row in the table.