Use jinja2 to render html

[tony]

Removes fett as a dependency. Jinja2 is implicitly included with sphinx
as a required dependency.

[tony]

I tested this and don't think it works.

WARNING: :15: (WARNING/2) Explicit markup ends without a blank line; unexpected unindent.
WARNING: :18: (ERROR/3) Unexpected indentation.
WARNING: :20: (ERROR/3) Unexpected indentation.
WARNING: :24: (WARNING/2) Definition list ends without a blank line; unexpected unindent.
WARNING: :26: (ERROR/3) Unexpected indentation.
WARNING: :28: (WARNING/2) Block quote ends without a blank line; unexpected unindent.
WARNING: :30: (ERROR/3) Unexpected indentation.
WARNING: :32: (WARNING/2) Block quote ends without a blank line; unexpected unindent.
WARNING: :33: (WARNING/2) Block quote ends without a blank line; unexpected unindent.
WARNING: :34: (WARNING/2) Block quote ends without a blank line; unexpected unindent.
WARNING: :35: (WARNING/2) Definition list ends without a blank line; unexpected unindent.

I will come back and look at it more closely another time (or if someone else would like to PR an alternative / fill the fett dependency, that's okay too).

Aside: I'm used to rendering raw html a different way in docutils. I typically will use nodes.raw. Here's an example: https://github.com/Parsely/python-adv-slides/blob/d58ca98/rst-directive.py#L83

[ddaaac]

Hi. I'm also struggle with this problem.

I think the problem is in style.css.

.graphiql .query, .graphiql .response {
  display: none;
}

So, html pages doesn't show nothing about query things.

I don't know how to fix it