fix minor grammar error. (#3996)

Author: erichiller

xml/System/Console.xml

@@ -591,7 +591,7 @@
   
 -   <xref:System.ConsoleCancelEventArgs.SpecialKey%2A>, which allows you to determine whether the handler was invoked as a result of the user pressing Ctrl+C (the property value is <xref:System.ConsoleSpecialKey.ControlC?displayProperty=nameWithType>) or Ctrl+Break (the property value is <xref:System.ConsoleSpecialKey.ControlBreak?displayProperty=nameWithType>).  
   
--   <xref:System.ConsoleCancelEventArgs.Cancel%2A>, which allows you to determine how to your application should respond to the user pressing Ctrl+C or Ctrl+Break. By default, the <xref:System.ConsoleCancelEventArgs.Cancel%2A> property is `false`, which causes program execution to terminate when the event handler exits. Changing its property to `true` specifies that the application should continue to execute.  
+-   <xref:System.ConsoleCancelEventArgs.Cancel%2A>, which allows you to determine how your application should respond to the user pressing Ctrl+C or Ctrl+Break. By default, the <xref:System.ConsoleCancelEventArgs.Cancel%2A> property is `false`, which causes program execution to terminate when the event handler exits. Changing its property to `true` specifies that the application should continue to execute.  
   
 > [!TIP]
 >  If your application has simple requirements, you can use the <xref:System.Console.TreatControlCAsInput%2A> property instead of this event. By setting this property to `false`, you can ensure that your application always exits if the user presses Ctrl+C. By setting it to `true`, you can ensure that pressing Ctrl+C will not terminate the application.