More edits.

Author: szabosteve

reference/security/index.md

@@ -3,6 +3,7 @@ applies_to:
   stack: all
   serverless:
     security: all
+navigation_title: Security
 ---
 
 # Elastic Security reference
@@ -14,4 +15,4 @@ This section contains reference information for {{elastic-sec}} features, includ
 * [Prebuilt detection rules reference](detection-rules://index.md)
 
 To learn more about Security features and how to get started, refer to [{{elastic-sec}}](/solutions/security.md).
-To interface with {{elastic-sec}} features, you can use these [APIs](/solutions/security/apis.md). 
+To interface with {{elastic-sec}} features, you can use these [APIs](/solutions/security/apis.md).