Updating section headers to use sentence casing.

Author: EMaher

articles/lab-services/classroom-labs/class-type-database-management.md

@@ -22,19 +22,19 @@ This article describes how to set up a lab for a basic databases management clas
 
 In this article, we'll show how to set up a virtual machine template in a lab with both MySQL Database Server and SQL Server 2019 server.  [MySQL](https://www.mysql.com/) is a freely available open source Relational Database Management System (RDBMS).  [SQL Server 2019](https://www.microsoft.com/sql-server/sql-server-2019) is the latest version of Microsoft’s RDBMS.
 
-## Lab Configuration
+## Lab configuration
 
 To set up this lab, you need an Azure subscription and lab account to get started. If you don't have an Azure subscription, create a [free account](https://azure.microsoft.com/free/) before you begin. Once you get an Azure subscription, you can create a new lab account in Azure Lab Services. For more information about creating a new lab account, see [Tutorial to Setup a Lab Account](tutorial-setup-lab-account.md).  You can also use an existing lab account.
 
-### Lab Account Settings
+### Lab account settings
 
 Enable the settings described in the table below for the lab account. For more information about how to enable marketplace images, see [Specify Marketplace images available to lab creators](https://docs.microsoft.com/azure/lab-services/classroom-labs/tutorial-setup-lab-account#specify-marketplace-images-available-to-lab-creators).
 
 | Lab account setting | Instructions |
 | ------------------- | ------------ |
 |Marketplace image| Enable the ‘SQL Server 2019 Standard on Windows Server 2019’ image for use within your lab account.|
 
-### Lab Settings
+### Lab settings
 
 Use the settings in the table below when setting up a classroom lab.  For more information how to create a classroom lab, see [set up a classroom lab tutorial](tutorial-setup-classroom-lab.md).
 
@@ -43,13 +43,13 @@ Use the settings in the table below when setting up a classroom lab.  For more i
 |Virtual Machine Size| Medium. This size is best suited for relational databases, in-memory caching, and analytics.|
 |Virtual Machine Image| SQL Server 2019 Standard on Windows Server 2019|
 
-## Template Machine Configuration
+## Template machine configuration
 
 To install MySQL on Windows Server 2019, you can follow the steps mentioned in [Install and Run MySQL Community Server on a Virtual Machine](https://docs.microsoft.com/previous-versions/azure/virtual-machines/windows/classic/mysql-2008r2?toc=%2Fazure%2Fvirtual-machines%2Fwindows%2Fclassic%2Ftoc.json#install-and-run-mysql-community-server-on-the-virtual-machine).
 
 SQL Server 2019 is pre-installed in the virtual machine image we chose when creating the new lab.
 
-## Cost Estimate
+## Cost estimate
 
 Let's cover a possible cost estimate for this class.  We'll use a class of 25 students.  There are 20 hours of scheduled class time.  Also, each student gets 10 hours quota for homework or assignments outside scheduled class time.  The virtual machine size we chose was medium, which is 42 lab units.