Add a link to the demo dir.
diff --git a/Doc/library/curses.rst b/Doc/library/curses.rst
index a3c098b..72711e1 100644
--- a/Doc/library/curses.rst
+++ b/Doc/library/curses.rst
@@ -48,7 +48,7 @@
       Tutorial material on using curses with Python, by Andrew Kuchling and Eric
       Raymond.
 
-   The :file:`Demo/curses/` directory in the Python source distribution contains
+   The :source:`Demo/curses/` directory in the Python source distribution contains
    some example programs using the curses bindings provided by this module.