Add forum button on all pages

_templates/forum.html

+<a class="btn btn-danger btn-sm btn-block text-light" role="button" href="https://bbb.io/gsocml">
+    <i class="fa-brands fa-discourse"></i> Discuss on Forum
+</a>
\ No newline at end of file

conf.py

@@ -117,7 +117,7 @@ html_theme_options = {
     "footer_end": ["last-updated"],
     # "content_footer_items": ["last-updated"],
     "secondary_sidebar_items": {
-        "**": ["page-toc", "edit-this-page", "sourcelink","pdf"]
+        "**": ["page-toc", "edit-this-page", "sourcelink","forum","pdf"]
     }
 }