Add missing C# semicolons

And a small formatting update of adding a space.

Author: kendaleiv

articles/azure-sql/database/authentication-aad-configure.md

@@ -528,9 +528,9 @@ This authentication method allows middle-tier services to obtain [JSON Web Token
 Sample connection string:
 
 ```csharp
-string ConnectionString =@"Data Source=n9lxnyuzhv.database.windows.net; Initial Catalog=testdb;"
+string ConnectionString = @"Data Source=n9lxnyuzhv.database.windows.net; Initial Catalog=testdb;";
 SqlConnection conn = new SqlConnection(ConnectionString);
-conn.AccessToken = "Your JWT token"
+conn.AccessToken = "Your JWT token";
 conn.Open();
 ```
 
@@ -565,4 +565,4 @@ Guidance on troubleshooting issues with Azure AD authentication can be found in
 
 [11]: ./media/authentication-aad-configure/active-directory-integrated.png
 [12]: ./media/authentication-aad-configure/12connect-using-pw-auth2.png
-[13]: ./media/authentication-aad-configure/13connect-to-db2.png
+[13]: ./media/authentication-aad-configure/13connect-to-db2.png