fix secondary sidebar

Author: OriolAbril

examples/conf.py

@@ -114,7 +114,7 @@ def setup(app: Sphinx):
 # theme options
 html_theme = "pymc_sphinx_theme"
 html_theme_options = {
-    "page_sidebar_items": ["postcard", "page-toc", "edit-this-page", "donate"],
+    "secondary_sidebar_items": ["postcard", "page-toc", "edit-this-page", "sourcelink", "donate"],
     "navbar_start": ["navbar-logo"],
     "logo": {
         "link": "https://www.pymc.io",