Revise introduction for Exam AZ-305 and governance content

Updated module content to include a link for Exam AZ-305 and removed redundant bullet points on governance solutions.

Author: staleycyn

learn-pr/wwl-azure/design-governance/includes/1-introduction.md

@@ -42,18 +42,10 @@ In this module, you learn how to:
 
 ### Skills measured
 
-The content in this module helps you prepare for Exam AZ-305: Designing Microsoft Azure Infrastructure Solutions. The module concepts are covered in:
-
-Design identity, governance, and monitoring solutions
-
-- Design a governance solution
-
-   - Recommend a structure for management groups, subscriptions, and resource groups, and a strategy for resource tagging.
-
-   - Recommend a solution for managing compliance.
+The content in this module helps you prepare for [Exam AZ-305: Designing Microsoft Azure Infrastructure Solutions](/credentials/certifications/exams/az-305). 
 
 ### Prerequisites
 
 - Conceptual knowledge of governance policies, resource organization, and subscription management.
 
-- Working experience with organizing resources, applying governance policies, and enforcing compliance requirements.
+- Working experience with organizing resources, applying governance policies, and enforcing compliance requirements.