Add dataset card with subset configs

README.md

@@ -1,24 +1,34 @@
 ---
 configs:
-- config_name: default
-  data_files:
-  - split: test
-    path: data/test-*
-  - split: train
-    path: data/train-*
-- config_name: test
-  data_files:
-  - split: train
-    path: test/train-*
-dataset_info:
-  config_name: test
-  features:
-  - name: text
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 191357
-    num_examples: 5000
-  download_size: 146444
-  dataset_size: 191357
+  - config_name: 1BT
+    data_files:
+      - split: train
+        path: 1BT/train-*.parquet
+  - config_name: test
+    data_files:
+      - split: test
+        path: test/test-*.parquet
 ---
+
+# Addition Dataset
+
+Addition problems in the format `{a} + {b} = {c}
+` where operands are uniformly sampled from [0, 999999999].
+
+## Subsets
+
+- **1BT**: ~69M training examples (~1 billion tokens under Llama-3 tokenizer)
+- **test**: 5K held-out evaluation examples
+- **10BT**: (planned) ~690M training examples (~10 billion tokens)
+
+## Usage
+
+```python
+from datasets import load_dataset
+
+# Load 1BT training data
+train = load_dataset("deqing/addition_dataset", "1BT", split="train")
+
+# Load test set
+test = load_dataset("deqing/addition_dataset", "test", split="test")
+```