Fix lots of broken links in the docs, found by Sphinx' external link checker.
diff --git a/Doc/library/tix.rst b/Doc/library/tix.rst
index 04ea23a..ff2cfff 100644
--- a/Doc/library/tix.rst
+++ b/Doc/library/tix.rst
@@ -35,7 +35,7 @@
`Tix Programming Guide <http://tix.sourceforge.net/dist/current/docs/tix-book/tix.book.html>`_
On-line version of the programmer's reference material.
- `Tix Development Applications <http://tix.sourceforge.net/Tide/>`_
+ `Tix Development Applications <http://tix.sourceforge.net/Tixapps/src/Tide.html>`_
Tix applications for development of Tix and Tkinter programs. Tide applications
work under Tk or Tkinter, and include :program:`TixInspect`, an inspector to
remotely modify and debug Tix/Tk/Tkinter applications.