Submodule PR?

I am new to contributing to fastai, or any open source project and I am having trouble with my first PR. I think it is related to the docs submodule, though I don’t know that for sure. Attached is a gist of what I am doing. Scroll to the bottom to see where I ran into problems. I tried many things to get around it, but was unable to.

I would really appreciate any feedback that either fixes the specific problem I am having, or just better ways to do things in general If others think a guide with this level of detail would be helpful, I will turn it into a guide and post it somewhere once it’s complete.

@jeremy - Mentioning you based on your reccomendation on discord.

Gist Link: