add 'safari' to webbrowser browsers table; thanks to Jonathan Eunice from docs@
diff --git a/Doc/library/webbrowser.rst b/Doc/library/webbrowser.rst
index 23ba6c5..dfb09ee 100644
--- a/Doc/library/webbrowser.rst
+++ b/Doc/library/webbrowser.rst
@@ -137,6 +137,8 @@
 +-----------------------+-----------------------------------------+-------+
 | ``'macosx'``          | :class:`MacOSX('default')`              | \(4)  |
 +-----------------------+-----------------------------------------+-------+
+| ``'safari'``          | :class:`MacOSX('safari')`               | \(4)  |
++-----------------------+-----------------------------------------+-------+
 
 Notes: