(docs): update ROLL ppt.

Author: PanAndy

README.md

@@ -40,12 +40,13 @@ Leveraging a multi-role distributed architecture with Ray for flexible resource
 | **[08/13/2025]** 🎉 ROLL supports AMD GPUs with out-of-box image docker and Dockerfile and specific yamls under `examples/` directory. Please refer to [Installation](https://alibaba.github.io/ROLL/docs/English/QuickStart/installation).                                                               |
 | **[08/11/2025]** 🎉 Our Paper released, see [Part I: Tricks or Traps? A Deep Dive into RL for LLM Reasoning](https://arxiv.org/abs/2508.08221).                                                                                                                                                           |
 | **[08/10/2025]** 🎉 Agentic RL supports [stepwise learning](examples/qwen2.5-0.5B-agentic/agent_val_frozen_lake_gigpo.yaml), like [GiGPO](https://arxiv.org/abs/2505.10978); Distill supports [VLM](examples/qwen2.5-vl-7B-distill/distill_vl_megatron.yaml). Explore the new capabilities!               |
+| **[08/06/2025]** 🎉 ROLL PPT is now available, [Slides](assets/ROLL%20高效且用户友好的大模型RL训练框架.pdf).                                                                                                                                                                                                             |
 | **[07/31/2025]** 🎉 Refactor agentic rl design. Support agentic rl [async training](examples/qwen2.5-0.5B-agentic/agent_val_frozen_lake_async.yaml). Explore the new capabilities!                                                                                                                        |
 | **[07/31/2025]** 🎉 Support [DistillPipeline](examples/qwen2.5-7B-distill_megatron/run_distill_pipeline.sh)/[DpoPipeline](examples/qwen2.5-3B-dpo_megatron/run_dpo_pipeline.sh). Support [lora](examples/qwen2.5-7B-rlvr_megatron/rlvr_lora_zero3.yaml). Support [GSPO](https://arxiv.org/abs/2507.18071) |
 | **[06/25/2025]** 🎉 Support thread env for env scaling and support qwen2.5 VL agentic pipeline.                                                                                                                                                                                                           |
 | **[06/13/2025]** 🎉 Support Qwen2.5 VL rlvr pipeline and upgrade mcore to 0.12 version.                                                                                                                                                                                                                   |
 | **[06/09/2025]** 🎉 ROLL tech report is now available! Access the report [here](https://arxiv.org/abs/2506.06122).                                                                                                                                                                                        |
-| **[06/08/2025]** 🎉Supports  Qwen3(8B/14B/32B), Qwen3-MoE(30A3/235A22), Qwen2.5(7B/14B/32B/72B) LLM models.                                                                                                                                                                                          |
+| **[06/08/2025]** 🎉Supports  Qwen3(8B/14B/32B), Qwen3-MoE(30A3/235A22), Qwen2.5(7B/14B/32B/72B) LLM models.                                                                                                                                                                                               |
 | **[05/30/2025]** 🎉 Training RLVR and Agentic RL with ROLL is now available! Explore the new capabilities.                                                                                                                                                                                                |
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