Add figures comparing LoRA on FSDP and megatron

Signed-off-by: Hollow Man <[email protected]>

Author: HollowMan6

docs/advance/ppo_lora.rst

@@ -132,6 +132,13 @@ Make sure you use Megatron-Bridge later than 0.2.0, and we recommended using `th
         freeze_vision_projection: True
         freeze_language_model: True
 
+LoRA training experiment with Qwen3-8B on 8 * H200 single node comparing FSDP and Megatron backend (script adapted from examples/grpo_trainer/run_qwen2-7b_math_megatron_lora.sh):
+
+.. image:: https://github.com/user-attachments/assets/0482f423-01a3-4e52-a7ee-8b9cd79b7b1a
+.. image:: https://github.com/user-attachments/assets/6ce10400-8164-47d8-90a6-c1bf002fb9e8
+.. image:: https://github.com/user-attachments/assets/092d3a43-4eba-425e-a584-8d83c1f02de4
+
+
 Best Practices and Notes
 -------------------------