Updated TOC

Author: Amber Bhargava

articles/billing/TOC.yml

@@ -149,7 +149,7 @@
     href: billing-understand-mca-roles.md
   - name: Link partner ID
     href: billing-partner-admin-link-started.md
-  - name: Organize costs by customizing your MCA billing account
+  - name: Organize costs by customizing your billing account - Microsoft Customer Agreement 
     href: billing-mca-section-invoice.md
   - name: EA tasks in Microsoft Customer Agreement
     href: billing-mca-enterprise-operations.md