cuSpatial Python User Guide (#666)

This PR adds `docs/source/user_guide/index.ipynb`, a comprehensive description of the APIs available in cuspatial python and example code for each.

The APIs are separated in a table of contents by the logical structure we've settled on for their location in the API. The demonstrate uses the `cuspatial.` version of every API, none are accessed using their full python package address.

At the bottom I'm working on some examples of performing `contains` and `within`, DE-9IM operations that can be performed easily with `point-in-polygon`. Otherwise the document is complete.

Depends on #685 and #680

This contributes to or closes #599 by providing an example use case of all python APIs.

Authors:
  - H. Thomson Comer (https://github.com/thomcom)

Approvers:
  - Mark Harris (https://github.com/harrism)
  - Michael Wang (https://github.com/isVoid)

URL: #666

docs/source/conf.py

@@ -45,6 +45,11 @@
     "myst_parser"
 ]
 
+jupyter_execute_notebooks = "force"
+execution_timeout = 300
+
+copybutton_prompt_text = ">>> "
+autosummary_generate = True
 ipython_mplbackend = "str"
 
 # Add any paths that contain templates here, relative to this directory.

docs/source/user_guide/index.md

@@ -1,3 +1,6 @@
-# User Guide
 
-Coming soon!
+```{toctree}
+:maxdepth: 2
+
+users
+```