docs: some reorganisation of documentation

docs/conf.py

@@ -19,6 +19,8 @@ author = 'Bypass Censorship'
 # ones.
 extensions = [
     'sphinx.ext.autodoc',
+    'sphinxcontrib.mermaid',
+    'sphinxcontrib.openapi'
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -35,7 +37,7 @@ exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = 'alabaster'
+html_theme = 'furo'
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,