diff --git a/content/ai_exchange/content/docs/_index.md b/content/ai_exchange/content/docs/_index.md
index 0d50196..c4e80b7 100644
--- a/content/ai_exchange/content/docs/_index.md
+++ b/content/ai_exchange/content/docs/_index.md
@@ -3,10 +3,11 @@ title: Content
 ---
 
 {{< cards >}}
-    {{< small-card link="/docs/ai_security_overview/" title="AI Security Overview">}}
+    {{< small-card link="/docs/ai_security_overview/" title="0.AI Security Overview">}}
     {{< small-card link="/docs/1_general_controls/" title="1. General controls">}}
     {{< small-card link="/docs/2_threats_through_use/" title="2. Threats through use">}}
     {{< small-card link="/docs/3_development_time_threats/" title="3. Development-time threats">}}
     {{< small-card link="/docs/4_runtime_application_security_threats/" title="4. Runtime application security threats">}}
+    {{< small-card link="/docs/5_testing/" title="5. Testing">}}
     {{< small-card link="/docs/ai_security_references/" title="References">}}
 {{< /cards >}}