Revert "Update conf.py"

This reverts commit 3b356f23

conf.py

@@ -33,6 +33,7 @@ html_theme = 'sphinx_rtd_theme'
 html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 def setup(app):
     app.add_stylesheet('css/custom.css')
+def setup(app):
     app.add_javascript('js/custom.js')
 # 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