Document build failed

[chenjr0719]

Hey guys, I just noticed the document build on readthedocs has failed since 1 month ago. It caused by the conda again. I would like to fix this issue but I have one question, do we still need to use conda for creating the environment when building the document? Or, we can just use pip install .[docs]? Here is the doc explain how to build the document on readthedocs with extra requirements. Let me know your idea. 😃

[ahopkins]

I say go ahead with pip and skip conda. 👍