lua - now we have a plugin manager which works relativley cool!

lua/plugins/demo/md_banner.lua

@@ -0,0 +1,9 @@
+register_hook("pre_template", function(md_path, html_body)
+    -- Check if the current markdown path is for test.md
+    if md_path and md_path:match("test%.md$") then
+        local banner = "<div class='plugin-banner' style='padding:10px;background:white;border:1px solid #f99;margin-bottom:12px;color:black;'>Note: served via Lua plugin banner</div>"
+        return banner .. html_body
+    end
+    -- For other pages, return the original HTML body unchanged
+    return html_body
+end)