After an internal discussion (mostly after feedback from@thrau), I decided to drop the sphinx docs and keep all the docs related to the SDK in our official userdocumentation.
One of the biggest pro of sphinx was the API reference generation from docstrings which we can still re-introduce at some point in the official docs, if we want. I'd argue that the reference becomes less important once we open-source this repo.

I think this is a very interesting discussion to have. It's totally fine to take them down for now, but it would be super interesting what the reasoningagainst publishing their own fine-grained docs is (in the PR description you only mentioned the "pro" of Sphinx).

I found a small issue in the README (wrong badge) which would be good to fix before merging, the rest of my comments really are just nitpicks. These shouldn't be blocking the merge (and are quite subjective I would say).