Adds missing torch imports to inpainting and image_to_image example (#265)

adds missing torch import to example

examples/inference/readme.md

@@ -16,6 +16,7 @@ The `image_to_image.py` script implements `StableDiffusionImg2ImgPipeline`. It l
 
 
 ```python
+import torch
 from torch import autocast
 import requests
 from PIL import Image
@@ -61,6 +62,7 @@ The `inpainting.py` script implements `StableDiffusionInpaintingPipeline`. This
 ### How to use it
 
 ```python
+import torch
 from io import BytesIO
 
 from torch import autocast