Update Point.xml

Corrected the example comment

Author: activatekillswitch

xml/System.Windows/Point.xml

@@ -148,7 +148,7 @@
    
   
 ## Examples  
- This example adds a <xref:System.Windows.Point> to a <xref:System.Windows.Vector> and returns the result as a <xref:System.Windows.Vector> structure.  
+ This example adds a <xref:System.Windows.Vector> to a <xref:System.Windows.Point> and returns the result as a <xref:System.Windows.Point> structure.  
   
  :::code language="csharp" source="~/snippets/csharp/System.Windows/Point/Overview/PointExample.cs" id="Snippetaddpointandvectorexample_csharp":::