Update README.md

Author: saddam213

Examples/TensorStack.Example.Upscaler/README.md

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 TensorStack Upscale Demo, a simple WPF application showcasing the capabilities of [TensorStack.Upscaler](https://github.com/TensorStack-AI/TensorStack/tree/master/TensorStack.Upscaler) project.
 
 ## Download
-[Upscaler Demo v0.1.18 (DirectML)](https://github.com/TensorStack-AI/TensorStack/releases/download/v0.1.18/UpscaleDemo_v0.1.18.zip)
+[Upscaler Demo v0.1.39 (DirectML)](https://github.com/TensorStack-AI/TensorStack/releases/download/v0.1.39/UpscaleDemo_v0.1.39.zip)
 
 ## Upscale Image
 <img src="../../Assets/Examples/UpscaleImage.PNG"/>