Theme navigation changes

conf.py

@@ -52,4 +52,9 @@ html_theme = 'alabaster'
 # 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,
 # so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
+html_static_path = ['_static']
+
+html_theme_options = {
+    'fixed_sidebar': True,
+    'show_relbars': True,
+}