wxGUI: mirror update of header

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@49612 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_core/widgets.py

@@ -4,6 +4,7 @@
 @brief Core GUI widgets
 
 Classes:
+ - widgets::GNotebook
  - widgets::ScrolledPanel
  - widgets::NTCValidator
  - widgets::NumTextCtrl