Fix typo in an example of Bind()-ing a function in the event overview.

Functors must be passed by const reference, not pointer.

Closes #14572.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72326 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/doxygen/overviews/eventhandling.h

@@ -374,7 +374,7 @@ MyFunctor myFunctor;
 
 MyFrame::MyFrame()
 {
-    Bind( wxEVT_COMMAND_MENU_SELECTED, &myFunctor, wxID_EXIT );
+    Bind( wxEVT_COMMAND_MENU_SELECTED, myFunctor, wxID_EXIT );
 }
 @endcode