Fix discrepancies between index.md files and directory names in the "Enterprise administrators" docset (#40864)

content/admin/code-security/index.md

@@ -1,6 +1,7 @@
 ---
 title: Managing code security for your enterprise
-shortTitle: Manage code security
+allowTitleToDifferFromFilename: true
+shortTitle: Code security
 intro: 'You can build security into your developers'' workflow with features that keep secrets and vulnerabilities out of your codebase, and that maintain your software supply chain.'
 versions:
   ghec: '*'
@@ -12,4 +13,3 @@ children:
   - /managing-github-advanced-security-for-your-enterprise
   - /managing-supply-chain-security-for-your-enterprise
 ---
-