Update README.md

Author: hikalkan

README.md

@@ -7,6 +7,7 @@ using ASP.NET Core and EntityFramework Core.
 
 * Visual Studio 2015
 * ASP.NET Core RC2 (Download here: https://go.microsoft.com/fwlink/?LinkId=798481)
+* SQL Server
 
 ## How To Run
 
@@ -17,4 +18,4 @@ using ASP.NET Core and EntityFramework Core.
   * Locate to the folder contains .EntityFrameworkCore project
   * Run "dotnet ef database update" command from console.
 * Add a few product to Products table in the database.
-* Run the application.
+* Run the application.