Add some notes on running on Windows to readme

[lendrick]

Got this running on windows. I had to do the following after setting up the python environment:

• Install Jupyter: pip install jupyterlab ipywidgets (see https://jupyter.org/install and https://ipywidgets.readthedocs.io/en/stable/user_install.html)\
• Go into Windows Developer Settings and enable Developer Mode (the notebook uses symlinks and windows only allows them if developer mode is turned on or if you run jupyter as an administrator)

For the record, I did this with my existing environment from hlky's Stable Diffusion Webui, which can be found here: https://github.com/sd-webui/stable-diffusion-webui, so I didn't need to install the other packages because I already had them.

This isn't quite good enough to go into the readme yet because I didn't install from a blank environment, but maybe other windows users can use this info and some instructions can be assembled.

[AndrWeisR]

I also had to install a CUDA enabled torch with conda install pytorch torchvision torchaudio cudatoolkit=11.6 -c pytorch -c conda-forge

[baerrach]

Some more instructions for people without a python/conda environment would be great too,

I've never run jupyter before and its not obvious the steps needed to get this all installed and running