Add README for css code dataset

README.md

@@ -1,17 +1,15 @@
 ---
-dataset_info:
-  features:
-  - name: text
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 320073360
-    num_examples: 18645
-  download_size: 79986438
-  dataset_size: 320073360
 configs:
-- config_name: default
+- config_name: css
   data_files:
-  - split: train
-    path: data/train-*
+    - split: train
+      path: data/css-*.parquet
 ---
+
+# LangMap-TheStack-css-100M
+
+Code finetuning dataset for **css** streamed from [bigcode/the-stack](https://huggingface.co/datasets/bigcode/the-stack).
+
+- **Tokens collected**: 100,000,000 (target: 100,000,000)
+- **Tokenizer**: `allenai/OLMo-3-1025-7B`
+- **Schema**: `{"text": [...]}` (sanitised source code)