update Geany URL; thanks to Karl Tarbet from docs@

sandrotosi · sandrotosi · commit 8b2c71a125dc · 2012-08-12T11:02:03.000+02:00
diff --git a/Doc/using/unix.rst b/Doc/using/unix.rst
@@ -141,7 +141,7 @@ information on how to code in Python in these editors, look at:
 * http://sourceforge.net/projects/python-mode
 
 Geany is an excellent IDE with support for a lot of languages. For more
-information, read: http://geany.uvena.de/
+information, read: http://www.geany.org/
 
 Komodo edit is another extremely good IDE.  It also has support for a lot of
 languages. For more information, read:
