file not found error,  super_resolution_with_onnxruntime.ipynb  in colab.

I tried to run the notebook in colab.  
But some issues there. 

However I ran into some errors to load the cat.jpg file 
`
img = Image.open("./_static/img/cat.jpg")
Not found images. 
`
I also tried 
`
img = Image.open("../_static/img/cat.jpg")
`
still not working. 

Some minor issues:
 like  onnx, onnxruntime not found error.  
I have installed myself. with `!pipi install`

