fix index file

Author: ceperezb

learn-pr/wwl-sci/security-copilot-describe-agents/6-module-assessment.yml

@@ -14,7 +14,7 @@ metadata:
 durationInMinutes: 2
 
 content: |
-  [!include[](includes/6-module assessment.md)]
+  [!include[](includes/6-module.assessment.md)]
 
 quiz:
   title: Check your knowledge

learn-pr/wwl-sci/security-copilot-describe-agents/index.yml

@@ -40,6 +40,7 @@ subjects: # see subject taxonomy https://review.learn.microsoft.com/help/contrib
   - security
 units:
 - learn.security-copilot-describe-agents.introduction
+- learn.security-copilot-describe-agents.describe-security-copilot-agents
 - learn.security-copilot-describe-agents.describe-threat-intelligence-briefing-agent
 - learn.security-copilot-describe-agents.describe-conditional-access-optimization-agent  
 - learn.security-copilot-describe-agents.describe-phishing-triage-agent