card: cleanup (structure, status line, support block, dated corrections; measured numbers unchanged)

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01S12bxwQ8C3QVFic6oFuFAZ

README.md

@@ -44,6 +44,14 @@ row["kind"], row["prompt"][:200], row["reasoning"][:200], row["answer"][:200]
 #   candidates = row["topk_ids"][j]; logprobs = row["topk_logprobs"][j]   (20 each, highest first; renormalise before use)
 ```
 
+## Status
+
+Published 28 Sep 2026. It is the Phase-2 training data of [Whittle-Qwen-3.8-35B-A3B](https://huggingface.co/logic65/Whittle-Qwen-3.8-35B-A3B) (Phase 2 ran 28–30 Sep 2026). Per that model's card, its root (Phase-2 step 32010) trained once on the 22,950 rows that fit its 4,096-token window; the 1,470 `longctx` rows were not used yet.
+
+## Files
+
+- `data/train-00000-of-00051.parquet` … `data/train-00050-of-00051.parquet`: the whole set as 51 Parquet shards, read by the `default` config as its single `train` split (see the front matter).
+
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 ## Columns