Add design module for AI agents in business solutions

Author: Randall-Knapp

learn-pr/paths/architect-agentic-ai-business-solutions/index.yml

@@ -35,6 +35,7 @@ modules:
 - learn.wwl.introduction-agentic-ai-business-solution-architecture
 - learn.wwl.analyze-requirements-ai-powered-business-solutions
 - learn.wwl.evaluate-costs-benefits-ai-powered-business-solution
+- learn.wwl.design-ai-agents-business-solutions
 - learn.wwl.manage-testing-ai-powered-business-solutions
 - learn.wwl.design-extensibility-ai-solutions
 - learn.wwl.design-responsible-ai-security-governance-risk-management-compliance