Update sql-database-technical-overview.md

Author: ShawnJackson

articles/sql-database/sql-database-technical-overview.md

@@ -1,6 +1,6 @@
 ---
 title: What is the Azure SQL Database service? | Microsoft Docs
-description: 'Get an introduction to SQL Database: technical details and capabilities of Microsoft''s relational database management system (RDBMS) in the cloud.'
+description: 'Get an introduction to SQL Database: technical details and capabilities of Microsoft's relational database management system (RDBMS) in the cloud.'
 keywords: introduction to sql,intro to sql,what is sql database
 services: sql-database
 ms.service: sql-database
@@ -20,7 +20,7 @@ Azure SQL Database is a general-purpose relational database, provided as a manag
 
 It's based on the latest stable version of the [Microsoft SQL Server database engine](https://docs.microsoft.com/sql/sql-server/sql-server-technical-documentation?toc=/azure/sql-database/toc.json). You can use advanced query processing features, such as [high-performance in-memory technologies](sql-database-in-memory.md) and [intelligent query processing](https://docs.microsoft.com/sql/relational-databases/performance/intelligent-query-processing?toc=/azure/sql-database/toc.json). In fact, the newest capabilities of SQL Server are released first to SQL Database, and then to SQL Server itself. You get the newest SQL Server capabilities with no overhead for patching or upgrading, tested across millions of databases. 
 
-SQL Database enables you to easily define and scale performance within two different purchasing models: a [vCore-based purchasing model](sql-database-service-tiers-vcore.md) and a [DTU-based purchasing model](sql-database-service-tiers-dtu.md). SQL Database is a fully managed service that has built-in high availablility, backups, and other common maintenance operations. Microsoft handles all patching and updating of the SQL and operating system code. You don't have to manage the underlying infrastructure.
+SQL Database enables you to easily define and scale performance within two different purchasing models: a [vCore-based purchasing model](sql-database-service-tiers-vcore.md) and a [DTU-based purchasing model](sql-database-service-tiers-dtu.md). SQL Database is a fully managed service that has built-in high availability, backups, and other common maintenance operations. Microsoft handles all patching and updating of the SQL and operating system code. You don't have to manage the underlying infrastructure.
 
 > [!NOTE]
 > For relevant terms and their definitions, see the [SQL Database terms glossary](sql-database-glossary-terms.md).