Update conf.py

conf.py

@@ -176,6 +176,9 @@
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {'https://docs.python.org/': None}
 
+def setup(app):
+   app.add_stylesheet('custom.css')
+
 # -- Options for todo extension ----------------------------------------------
 
 # If true, `todo` and `todoList` produce output, else they produce nothing.