Update file conf.py

docs/conf.py

@@ -29,6 +29,6 @@ source_suffix = {
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
 
 #html_theme = 'sphinx_rtd_theme'
-html_theme = 'classic'
+html_theme = 'haiku'
 html_static_path = ['_static']