Update README.md

```
Author: QiuLongQuan
version: 0.0.1
release date: '2023-08-18T00:00:00.000Z'
license: cc-by-sa-4.0
task_categories:
- question-answering
language:
- ja
- en
```

README.md

@@ -10,4 +10,12 @@ language:
 - en
 size_categories:
 - 1M<n<10M
+
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: "data.csv"
+  - split: test
+    path: "holdout.csv"
 ---