Merge pull request sgl-project#634 from catnanami/patch-1

Enhance DFlash training details in README

Author: jiapingW

README.md

@@ -29,7 +29,7 @@ Check out [**our documentation**](https://docs.sglang.ai/SpecForge/) to get star
 | Method | Description | Training | Example | Optimization |
 | --- | --- | --- | --- | --- |
 | **[EAGLE3](https://arxiv.org/abs/2503.01840)** | Feature-based autoregressive drafting | [`scripts/train_eagle3.py`](./scripts/train_eagle3.py) | [`examples/run_qwen3_8b_eagle3_online.sh`](./examples/run_qwen3_8b_eagle3_online.sh) | [LK loss](https://arxiv.org/pdf/2602.23881)
-| **[DFlash](https://arxiv.org/abs/2602.06036)** | Block-parallel drafting | [`scripts/train_dflash.py`](./scripts/train_dflash.py) | [`examples/run_qwen3_8b_dflash_online.sh`](./examples/run_qwen3_8b_dflash_online.sh) | [D-PACE](https://arxiv.org/abs/2605.18810)
+| **[DFlash](https://arxiv.org/abs/2602.06036)** | Block-parallel drafting | [`scripts/train_dflash.py`](./scripts/train_dflash.py) | [`examples/run_qwen3_8b_dflash_online.sh`](./examples/run_qwen3_8b_dflash_online.sh) | [D-PACE](https://arxiv.org/abs/2605.18810), [D²SD](https://arxiv.org/abs/2606.04446)
 | **[Domino](https://arxiv.org/html/2605.29707v1)** | DFlash with GRU logit correction | [`scripts/train_domino.py`](./scripts/train_domino.py) | [`examples/run_qwen3_8b_domino_online.sh`](./examples/run_qwen3_8b_domino_online.sh) |
 
 
@@ -47,6 +47,7 @@ SpecBundle is a collection of production-grade speculative decoding models that
 
 ## 🎉 News
 
+- [2026-06] 🔥 Added D²SD's DTA training as an optional training mode for DFlash training
 - [2026-06] 🔥 Added D-PACE as an optional loss for DFlash training.
 - [2026-06] 🔥 Added Domino online training for DFlash draft models.
 - [2026-01] 🔥 Added DFlash block-parallel online training with SGLang serving support.