hacking-howto: add tabbed layout (Thanks msi)

diff --git a/docs/hacking-howto b/docs/hacking-howto
index ce97d2c8dca5185cfa35776931f6c0ff0333e4af..017e0d0b2c0957ec5724d64aea8c4aaa50903a23 100644 (file)
--- a/docs/hacking-howto
+++ b/docs/hacking-howto
@@ -340,7 +340,7 @@ reparented (see section "Manage windows").
 After reparenting the window, `render_layout()` is called which renders the
 internal layout table. The new window has been placed in the currently focused
 container and therefore the new window and the old windows (if any) need to be
-moved/resized so that the currently active layout (default mode/stacking mode)
+moved/resized so that the currently active layout (default/stacking/tabbed mode)
 is rendered correctly. To move/resize windows, a window is ``configured'' in
 X11-speak.