Adopt pydata sphinx theme (#371)

Author: blink1073

docs/conf.py

@@ -124,12 +124,12 @@
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-# html_theme = 'alabaster'
+html_theme = "pydata_sphinx_theme"
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
-# html_theme_options = {}
+html_theme_options = {"navigation_with_keys": False}
 
 # Add any paths that contain custom themes here, relative to this directory.
 # html_theme_path = []

pyproject.toml

@@ -52,6 +52,7 @@ docs = [
   "sphinxcontrib_spelling",
   "sphinx-autodoc-typehints",
   "traitlets",
+  "pydata_sphinx_theme",
 ]
 
 [project.scripts]