Update TOC.yml

Author: chrisda

defender-office-365/TOC.yml

@@ -81,7 +81,7 @@
        items:
        - name: Email - user reported settings
          href: submissions-user-reported-messages-custom-mailbox.md
-       - name: Deploy the Report Message and Report Phishing add-ins
+       - name: Transition from the Report Message and Report Phishing add-ins
          href: submissions-users-report-message-add-in-configure.md
        - name: Teams - user reported settings
          href: submissions-teams.md