Clarify free offer details for Azure SQL Managed Instance

Clarified the description of the free offer for evaluation of Azure SQL Managed Instance, emphasizing its benefits for testing and validation.

Author: staleycyn

learn-pr/wwl-azure/design-data-storage-solution-for-relational-data/includes/3-design-for-azure-sql-managed-instance.md

@@ -24,7 +24,7 @@ Let's explore a business scenario for Azure SQL Managed Instance. Komatsu is a m
 
 Consider how Azure SQL Managed Instance can be included in your relational data storage plan for Tailwind Traders:
 
-- **Consider the free offer for evaluation**: Azure SQL Managed Instance offers a free instance for 12 months after creation. This allows teams to evaluate lift-and-shift migrations. You can test CLR and Service Broker workloads. It is possible to validate compatibility. There is no initial cost commitment.
+- **Consider the free offer for evaluation**: Azure SQL Managed Instance offers a free instance for 12 months after creation. The free offer allows teams to evaluate lift-and-shift migrations. You can test CLR and Service Broker workloads. It's possible to validate compatibility. There's no initial cost commitment.
 
 - **Consider instance-scoped features**. Use instance-scoped features of Azure SQL Managed Instance like Service Broker, CLR, SQL Server Agent, and Linked servers. Migrate your relational and structured data to Azure without rearchitecting your applications.