Included in TOC

Author: ChristianMontoya

windows-365/enterprise/TOC.yml

@@ -29,8 +29,12 @@ items:
     href: customer-permissions.md  
   - name: Device configuration with MEM
     href: device-configuration.md
-  - name: Encryption
-    href: encryption.md
+  - name: Security
+    items:
+    - name: Windows 365 security
+      href: security.md
+    - name: Encryption
+      href: encryption.md
   - name: Privacy and personal data
     href: privacy-personal-data.md
 - name: How-to guides