diff --git a/docs/architecture.md b/docs/architecture.md
index e370149..ce46b9d 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -1,3 +1,5 @@
+## System Architecture
+
 ```mermaid
 flowchart TD
     SOURCE[(Private inspection histories<br/>read-only source)]