Update trial-playbook-defender-business.md

Author: denisebmsft

defender-business/trial-playbook-defender-business.md

@@ -39,7 +39,7 @@ Defender for Business is a new endpoint security solution designed especially fo
 
 Here's how to set up your trial subscription:
 
-1. [Visit the Microsoft Defender portal](#step-1-visit-the-microsoft-365-defender-portal).
+1. [Visit the Microsoft Defender portal](#step-1-visit-the-microsoft-defender-portal).
 2. [Use the setup wizard](#step-2-use-the-setup-wizard-in-defender-for-business).
 3. [Set up and configure Defender for Business](#step-3-set-up-and-configure-defender-for-business).