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README.md

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-# Stable Diffusion 1.5 for ONNX Runtime
+# Stable Diffusion 1.5 for ONNX Runtime CUDA provider
 
 ## Introduction
 
-This repository hosts the optimized versions of **Stable Diffusion 1.5** to accelerate inference with ONNX Runtime CUDA execution provider. The models are generated by [Olive](https://github.com/microsoft/Olive/tree/main/examples/stable_diffusion) with command like the following:
+This repository hosts the optimized onnx models of **Stable Diffusion 1.5** to accelerate inference with ONNX Runtime CUDA execution provider on Nvidia GPUs. It cannot run in other execution providers like CPU or DirectML.
+
+The models are generated by [Olive](https://github.com/microsoft/Olive/tree/main/examples/stable_diffusion) with command like the following:
 ```
-python stable_diffusion.py --provider cuda
+python stable_diffusion.py --provider cuda --optimize
 ```
 
 ## Model Description