Fix pathing so new waterdata documentation is available

[ehinman]

This small PR fixes the .rst pathing so that the new waterdata documentation appears in the API reference.

[ehinman]

@jzemmels can you take a quick look at this PR I made that fixes a documentation typo? I want to make sure that info is available before sharing the news of the new waterdata module. Thanks!

[jzemmels]

Looks good. I'm not able to emulate the same environment for building the Sphinx docs, so I can't verify that this fixed the issue. But the GitHub action logs suggest the docs succeeded, so we can check after merging to main.

[jzemmels]

Maybe not worth a mention, but I don't think this works for us since it just uses HTTP. I get a "SSL certificate problem: self-signed certificate in certificate chain" that happens any time I try to clone from GitHub with HTTP. And pip install git+ssh://github.com/DOI-USGS/dataretrieval-python.git didn't work either.

[ehinman]

Oh interesting! It works for me. Maybe it's a Mac vs PC thing? Maybe it's a specific environment thing?

[ehinman]

Looks good. I'm not able to emulate the same environment for building the Sphinx docs, so I can't verify that this fixed the issue. But the GitHub action logs suggest the docs succeeded, so we can check after merging to main.

Thanks for the quick review, @jzemmels. For future reference, you should be able to clone the repo, create a new environment that uses the requirements-dev.txt file to install all the required packages, navigate to the "docs" folder within the terminal, and then run make html. That should run the Sphinx docs and create a "build" folder where you can see all the built htmls. It can be a little finnicky, though. If you've done this and run into issues, I'd be curious to know where it's messing up.