Add DML GPU requirements to tutorial (#21590)

docs/genai/tutorials/phi3-python.md

@@ -56,7 +56,7 @@ This tutorial downloads and runs the short context (4k) mini (3B) model variant.
 ## Choose your platform
 
 Are you on a Windows machine with GPU?
-* I don't know → Review [this guide](https://www.microsoft.com/en-us/windows/learning-center/how-to-check-gpu) to see whether you have a GPU in your Windows machine.
+* I don't know → Review [this guide](https://www.microsoft.com/en-us/windows/learning-center/how-to-check-gpu) to see whether you have a GPU in your Windows machine and confirm that your GPU is [DirectML-supported](https://github.com/microsoft/DirectML?tab=readme-ov-file#hardware-requirements)
 * Yes → Follow the instructions for [DirectML](#run-with-directml).
 * No → Do you have an NVIDIA GPU?
   * I don't know → Review [this guide](https://docs.nvidia.com/cuda/cuda-installation-guide-microsoft-windows/index.html#verify-you-have-a-cuda-capable-gpu) to see whether you have a CUDA-capable GPU.
@@ -67,6 +67,7 @@ Are you on a Windows machine with GPU?
 
 ## Run with DirectML
 
+
 1. Download the model
 
    ```bash