Fix nonhydro documentation

[xylar]

This merge also includes a fix to the Chicoma docs

Checklist

• User's Guide has been updated
• Developer's Guide has been updated
• API documentation in the Developer's Guide (api.rst) has any new or modified class, method and/or functions listed
• Documentation has been built locally and changes look as expected
• Document (in a comment titled Testing in this PR) any testing that was used to verify the changes

[xylar]

Testing

I built the docs locally and (after fixing an indentation issue in the API) everything looks good now.

[xylar]

@cbegeman and @scalandr, I think we were all a bit exhausted in #374 and a few glitches in the documentation crept in at the end. This is to fix those (because they're making it hard to have correct documentation in other PRs).

Please take a glance at my fixes and make sure there's nothing obviously wrong. No need to build locally or anything.

Please approve today or tomorrow if you can because I want to rebase #525 onto this fix.

[scalandr]

Hi Xylar, I looked at your changes and could not see anything obviously wrong, so I approved the request.

[cbegeman]

@xylar Thanks for this fix! Approving based on visual inspection.

[xylar]

Thank you @scalandr and @cbegeman for responding so promptly! This is very helpful.